Exhibit
10.73


 


NEITHER
THE SECURITIES REPRESENTED BY THIS CERTIFICATE NOR THE SECURITIES ISSUABLE UPON EXERCISE OF THESE SECURITIES HAVE BEEN REGISTERED
UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR APPLICABLE STATE SECURITIES LAWS. THE SECURITIES
MAY NOT BE OFFERED FOR SALE, SOLD, TRANSFERRED OR ASSIGNED IN THE ABSENCE OF (A) AN EFFECTIVE REGISTRATION STATEMENT FOR THE SECURITIES
UNDER THE SECURITIES ACT, OR (B) IF REASONABLY REQUESTED BY THE COMPANY, AN OPINION OF COUNSEL REASONABLY ACCEPTABLE TO THE COMPANY
THAT REGISTRATION IS NOT REQUIRED UNDER THE SECURITIES ACT. THESE SECURITIES AND THE SECURITIES ISSUABLE UPON EXERCISE OF THESE
SECURITIES MAY BE PLEDGED IN CONNECTION WITH A BONA FIDE MARGIN ACCOUNT SECURED BY SUCH SECURITIES.


 



iSign
Solutions Inc.

 


Unsecured
Convertible Promissory Note


 


	No.
    N- ________	 
	$ ______________	_______________,
    2016
	 	 
	 	San
    Jose, California


 


FOR
VALUE RECEIVED, the undersigned, iSign Solutions Inc., a Delaware corporation (the “Company”), hereby promises
to pay to the order of __________________________________________ or its permitted assigns (the “Holder”) the
principal sum of _______________________________ DOLLARS ($ ____________), plus interest on the unpaid balance from the date hereof,
at the rate of 6.0% per annum on the unpaid principal amount (or, if lower, the maximum interest rate permitted by applicable
Law in accordance with Section 14), in lawful money of the United States of America or as otherwise provided in Section 1, at
___________________________________________________, or at such other place as the Holder may designate in writing. This Note
(the “Note”) has been issued pursuant to the Note and Warrant Purchase Agreement dated as of __________________, 2016, as amended
from time to time, among the Company and the Purchasers named therein (the “Purchase Agreement”) and is entitled
to the benefits and rights provided therein. Terms not otherwise defined herein shall have the definitions ascribed to them in
the Purchase Agreement.


 


1.       Maturity
Date; Interest Rate.


 


1.1       The
principal of this Note, together with all unpaid interest and any other fees or expenses otherwise due and owed to the Holder
under the Purchase Agreement, shall be due and payable on December 31, 2018 (the “Maturity Date”).


 


1.2       This
Note shall bear interest at the rate of 6.0% per annum (or, if lower, the maximum interest rate permitted by applicable Law in
accordance with Section 14) from the date hereof until repayment of the Note or conversion by the Holder of the Note in accordance
with Section 3. Interest on this Note shall be computed on the basis of a three hundred sixty-five (365) day year and actual days
elapsed.


 


1.3       Upon
conversion of all unpaid principal and accrued interest hereunder into the shares of Common Stock of the Company pursuant to Section
3, this Note shall be terminated in its entirety and shall be deemed surrendered to the Company for cancellation.


 




    		-1-	 



     


    

 


2.       Prepayment.
This Note may be prepaid by the Company, in whole or in part, at any time prior to the Maturity Date, without penalty, by giving
no less than fifteen (15) days’ prior notice to the Purchaser.


 


3.       Conversion.


 


3.1       Optional
Conversion - Financing. In the event the Company consummates a financing transaction through the sale and issuance of any
New Securities which provides gross cash proceeds to the Company in excess of One Million Dollars ($1,000,000) (a“ Financing”)
during the term that this Note is outstanding, the Holder may elect to convert all (but not less than all) of the outstanding
principal and accrued and unpaid interest hereunder into unregistered shares of Common Stock of the Company at the closing of
the Financing in accordance with the conversion ratio set forth in Section 3.2 and the conversion procedures of Section 3.4. Upon
conversion, this Note shall be cancelled.


 


3.2       Shares
Issuable in Optional Conversion - Financing. The number of whole shares of Common Stock into which outstanding principal and
accrued and unpaid interest under this Note shall be converted pursuant to Section 3.1 shall be determined by dividing (a) the
aggregate principal amount of this Note, together with all accrued and unpaid interest through the date of conversion, by (b)
the lesser of $1.30 or the price per share of Common Stock in the Financing. By way of illustration, (a) if the Company sold convertible
notes or preferred stock in the Financing and the conversion price of the convertible notes or preferred stock was $1.00, then
the Holder would be entitled to convert the outstanding principal and accrued and unpaid interest under this Note into shares
of Common Stock at $1.00 (as opposed to $1.30) and (b) if the Company sold shares of the Common Stock at $1.15 per share and warrants
to purchase shares of Common Stock at an exercise price of $1.45 in the Financing, then the Holder would be entitled to convert
the outstanding principal and accrued and unpaid interest under this Note into shares of Common Stock at $1.15 (as opposed to
$1.30).


 


3.3       Optional
Conversion - Other. Except as provided in Section 3.1, the Holder may elect to convert all (but not less than all) of the
outstanding principal and accrued and unpaid interest under this Note into unregistered whole shares of Common Stock of the Company
determined by dividing (a) the aggregate principal amount of this Note, together with accrued and unpaid interest through the
date of conversion, by (b) $1.30 and in accordance with Section 3.4. Upon conversion, this Note shall be cancelled.


 


3.4       Conversion
Procedures.


 


(a)       The
Company shall provide the Holder with written notice of a Financing no less than fifteen (15) days prior to the consummation of
such Financing. If the Holder elects to convert this Note under Section 3.1, then within five (5) days of receipt of such notice
the Holder shall deliver written notice to the Company, at the address of the Company’s principal executive office, of the
Holder’s election to convert the outstanding principal amount of this Note and accrued interest to the date of such conversion
into shares of Common Stock in accordance with Section 3.1.


 


(b)       If
the Holder elects to convert this Note under Section 3.3, then the Holder shall deliver written notice to the Company of at least
ten (10) days prior to the conversion date, at the address of the Company’s principal executive office, of the Holder’s
election to convert the outstanding principal amount of this Note and accrued interest to the date of such conversion into shares
of Common Stock in accordance with Section 3.3.


 


In
connection with giving either of such notice, the Holder shall surrender this Note to the Company for cancellation, as provided
in Section 1.3.


 




    		-2-	 



     


    

 


3.5       Delivery
of Book-Entry Shares. Upon the conversion of this Note into shares of Common Stock in accordance with the terms herein (and
the return of the original Note to the Company together with executed copies of such ancillary agreements or documents executed
by Holder as shall be reasonably requested by the Company), the Company at its expense will issue and deliver to the Holder of
this Note book-entry shares (bearing such legends as are required by applicable federal and state securities laws in the opinion
of counsel to the Company) for the number of whole shares of Common Stock issuable upon such conversion in accordance with Section
3.


 


3.6       No
Fractional Shares. No fractional shares of Common Stock shall be issued upon conversion of this Note. In lieu of the Company
issuing any fractional shares to the Holder upon the conversion of this Note, the Company shall pay to the Holder in cash the
value of such fractional shares based upon the current market price of the Common Stock, as determined by the Company’s
Board using the closing price of the Common Stock for the ten (10) consecutive trading days prior to the conversion date.


 


4.       Events
of Default; Remedies.


 


4.1       So
long as this Note is outstanding, an “Event of Default” with respect to this Note shall mean the occurrence
and existence of one or more of the following events or conditions (for any reason, whether voluntary, involuntary or effected
or required by any Law applicable to the Company):


 


(a)       The
Company fails to pay when due and payable any portion of the principal, interest or expenses required to be paid by the Company
pursuant to the terms of this Note (the “Note Indebtedness”).


 


(b)       The
Company fails to perform, keep, or observe in any material respect any term, provision, condition, covenant or agreement contained
in this Note or any other Transaction Document and such failure to perform remains in effect for a period of twenty (20) days
after written notice of such default is received by the Company.


 


(c)       The
Company institutes proceedings to be adjudicated as bankrupt or insolvent, or the consent by the Company to the institution of
bankruptcy or insolvency proceedings against it, or the filing by it of a petition or answer or consent seeking reorganization
or relief under any applicable federal, provincial or state Law relating to bankruptcy, insolvency, reorganization or relief of
debtors, or the consent by it to the filing of any such petition or to the appointment under any such Law of a receiver, liquidator,
assignee, trustee, sequestrator (or other similar official) of the Company or of substantially all of its property, or the making
by it of a general assignment for the benefit of creditors, or the admission by it in writing of its inability to pay its debts
generally as they become due.


 


(d)       If
there is the entry of a decree or order by a court having jurisdiction in the premises adjudging the Company as bankrupt or insolvent,
or approving as properly filed a petition seeking reorganization, arrangement or adjustment of or in respect of the Company under
any applicable Law relating to bankruptcy, insolvency, reorganization or relief of debtors, or appointing under any such Law a
receiver, liquidator, assignee, trustee, sequestrator (or other similar official) of the Company or of substantially all of its
property, or ordering pursuant to any such Law the winding-up or liquidation of its affairs, and the continuance of any such decree,
petition, appointment or order unstayed and in effect for a period of forty five (45) consecutive days.


 


(e)       If
any corporate action or proceeding is taken to terminate the corporate existence of the Company, whether by winding-up, surrender
of charter or otherwise.


 


(f)       If
the Company ceases to carry on its business or consummates the sale of all or substantially all of its assets.


 




    		-3-	 



     


    

 


4.2       Exercise
of Remedies.


 


(a)       If
an Event of Default (other than an Event of Default under Section 4.1(c) or (d)) has occurred and is continuing hereunder:


 


(i)       The
Holder may declare the entire unpaid Note Indebtedness, immediately due and payable, without presentment, notice or demand, all
of which are hereby expressly waived by the Company; and


 


(ii)       The
Holder may exercise any remedy permitted by this Note and the Purchase Agreement or the other Transaction Documents or at Law
or in equity.


 


(b)       If
an Event of Default under Section 4.1(c) or (d) has occurred and is continuing hereunder:


 


(i)       The
entire unpaid Note Indebtedness shall automatically become immediately due and payable, without presentment, notice or demand,
all of which are hereby expressly waived by the Company.


 


(ii)      The
Holder may exercise any remedy permitted by this Note and the Purchase Agreement or the other Transaction Documents or at Law
or in equity.


 


4.3       Waiver
of Defaults. No Event of Default shall be waived except in a writing signed by the Required Holders. No waiver of any Event
of Default shall extend to any other or further Event of Default.


 


5.       Rights
Under Purchase Agreement. The Holder shall be entitled to the rights and benefits of Sections 4.6 and 4.7 of the Purchase
Agreement, which are incorporated herein by reference.


 


6.       No
Assignment; Successors and Assigns. The Company may not assign this Note without the prior written consent of the holder of
the Note. Subject to the foregoing sentence and the restrictions on transfer described in Section 8 below, the rights and obligations
of the Company and the Holder of this Note shall be binding upon and benefit the successors, assigns, heirs, administrators and
transferees of the parties. Effective upon any such assignment, the person or entity to whom such rights, interests and obligations
were assigned shall have and exercise all of the Holder’s rights, interests and obligations hereunder as if such person
or entity were the original Holder of this Note.


 


7.       Waiver
and Amendment.Any provision of this Note may be amended, waived or modified only as provided in the Purchase Agreement.


 


8.       Transfer
of this Note. With respect to any transfer or other disposition of this Note, the Holder will give written notice to the
Company prior thereto, describing in reasonable detail the manner thereof, together with a written opinion of such
Holder’s counsel in a form reasonably satisfactory to the Company’s counsel, to the effect that such transfer or
other disposition may be effected without registration or qualification in accordance with all applicable federal or state
laws then in effect. Promptly upon receiving such written notice and reasonably satisfactory opinion, the Company, as
promptly as practicable, shall notify such Holder whether such Holder may transfer or otherwise dispose of this Note, all in
accordance with the terms of the notice delivered to the Company. If a determination has been made by the Company that the
opinion of counsel for the Holder is not reasonably satisfactory to the Company, the Company shall so notify the Holder
promptly after such determination has been made. Each Note transferred hereunder and each certificate representing the
securities thus transferred shall bear a legend as to the applicable restrictions on transferability in order to ensure
compliance with this Section 8 and the Securities Act. Any transferee of this Note shall be bound by the provisions of this
Note and the Purchase Agreement as if it were an original signatory thereto. The Company may issue stop transfer instructions
to its transfer agent in connection with such restrictions.


 






    		-4-	 



     


    

 


9.       Notices.
All notices, requests, consent and demands hereunder shall be made in writing in the manner described in the Purchase Agreement.


 


10.       No
Stockholder Rights. Nothing contained in this Note shall be construed as conferring upon the Holder or any other person the
right to vote or to consent or to receive notice as a stockholder in respect of meetings of stockholders for the election of directors
of the Company or any other matters or any rights whatsoever as a stockholder of the Company.


 


11.       Governing
Law. This Note shall be governed by and construed in accordance with the Laws of the State of Delaware, without regard to
the conflict of Laws provisions thereof. Each of the parties hereto hereby irrevocably consents to the exclusive jurisdiction
of the courts of the State of Delaware and of any Federal court located therein in connection with any suit, action or other proceeding
arising out of or relating to this Note and waives any objection to venue in the State of Delaware.


 


12.       Taxes.
Issuance and delivery of a certificate for shares of the Common Stock upon the conversion of this Note shall be made without charge
to the Holder for any issue or transfer tax, transfer agent fee or other incidental tax in respect of the issuance of such certificate,
all of which taxes shall be paid by the Company; provided, however, that (a) the Company shall not be required to
pay any tax which may be payable in respect of any transfer involved in the registration of any certificate for shares of the
Common Stock upon the conversion of this Note in a name other than that of the Holder and (b) the Holder shall be responsible
for all income tax and any other tax liability that may arise as a result of holding or transferring this Note or receiving shares
of the Common Stock upon the conversion of this Note.


 


13.       Loss,
Theft or Destruction of Note. Upon receipt by the Company of evidence reasonably satisfactory to it of the loss, theft or
destruction of this Note and of indemnity or security reasonably satisfactory to it, the Company will make and deliver a new Note
which shall carry the same rights to interest (unpaid and to accrue) carried by this Note, stating that such Note is issued in
replacement of this Note, making reference to the original date of issuance of this Note (and any successors hereto) and dated
as of such cancellation, in lieu of this Note.


 


14.       Usury.
This Note is hereby expressly limited so that in no event whatsoever, whether by reason of acceleration, or otherwise, shall the
amount paid or agreed to be paid to the Holder hereunder exceed that permissible under applicable Law. If at any time the performance
of any provision of this Note involves a payment exceeding the limit permitted under applicable Law, then automatically and retroactively,
ipso facto, the obligation to be performed shall be reduced to such limit, it being the specific intent of the Company
and the Holder that all payments under this Note are to be credited first to interest as permitted by Law, but not in excess of
(i) the agreed rate of interest set forth herein or (ii) that permitted by Law, whichever is the lesser, and the balance toward
the reduction of principal.


 


15.       Heading;
References. All headings used herein are used for convenience only and shall not be used to construe or interpret this Note.
Except as otherwise indicated, all references herein to Sections refer to Sections hereof.








 


16.       Delays.
No delay by the Holder in exercising any power or right hereunder shall operate as a waiver of any power or right.


 


17.       Severability.
If any provision or set of provisions of this Note (or any portion thereof) is held by a court of competent jurisdiction to be
invalid, illegal or unenforceable for any reason whatever: (a) such provision shall be limited or modified in its application
to the minimum extent necessary to avoid the invalidity, illegality or unenforceability of such provision and such modified provision
shall be reduced to a writing and signed by the parties hereto; (b) the validity, legality and enforceability of the remaining
provisions of this Note shall not in any way be affected or impaired thereby; and (c) to the fullest extent possible, the provisions
of this Note shall be construed so as to give effect to the intent manifested by the provision (or portion thereof) held invalid,
illegal or unenforceable.


 


18.       No
Impairment. The Company will not, by any voluntary action, avoid or seek to avoid the observance or performance of any of
the terms to be observed or performed hereunder by the Company, but will at all times in good faith assist in the carrying out
of all the provisions of this Note and in the taking of all such action as may be necessary or appropriate in order to protect
the rights of the Holder of this Note against impairment.


 


REMAINDER
OF PAGE INTENTIONALLY LEFT BLANK


 




    		-5-	 



     


    

  





In
Witness Whereof, the Company has caused this Note to be issued as of the date first set forth above.




 


	 	Company:
	 	 
	 	ISIGN
    SOLUTIONS INC.
	 	 	 
	 	By:	 
	 	Name:	         
	 	Title:	 
	 	Address:
    	2025 Gateway Place, Suite 485

                                                         San Jose, California 95110

	 	 	 
	 	Email:	ir@isignnow.com
	 	 	 
	 	Holder:
	 	 	 
	 	By:	 
	 	Name:	 
	 	Title:	 
	 	Address: 	 
	 	 	 
	 	Email:	 


 


Signature
page to Note


 


 


-6-