The daily union. [volume] (Washington [D.C.]) 1845-1857, 1845-08-16
EXTENSION OF PATENTS.
IcIRcULAR.l
PATENT OrrIoE, June 81, Is45.


PATENT OFFICE, June 81, Is45.
THE undersigned, constituted by law board Il
i decide upon applications for the extension o.
patents, have adopted the following suggestions anC
rules, for the benefit of those persons who may
hereafter apply for extensions.
The questions which arise on each application fol
AN extension are
l. Is the invention nopeR
g. Is it useful?
g. Is il paiuable and important to the public'
d. Has the inventor been adequately remunerated
for his time and expense in originating and perfect
ing iti
5 Has he used due diligence in introducing hi,
invention into general use'
The two first questions will be determined upor
the result Of an examination IN the Patent Office
as will also the third, to some extent.
To enable the board to come to a correct conclu.
sion in regard to the third point of inquiry, the APP
plicant should, If possible, procure the testimony Of
persons disnteresed in the invention which tcsti-
mony should be taken under OATH
In regard to the fourth and fifth points ofinquiry
in addition to his own oath showing his receipts and
expenditures on account of the invention, by which
its value is to be ascertained, the applicant should
show, by the testimony Of disnterested witnesses
on oath, that he has taken all reasonable measures
to introduce his invention into general use, and that
without default neglect his part, he has failed
to obtain from the use and sale of the invention
and expense bestowed on the same, and the intro
duction thereof into use.
The report of the examiner upon the novelty and
utility of the inventon will be ready fifteen days
before the day appointed for the hearing, which will
be open for inspection at the Patent Office; copies OF
which will be furnished to all parties interested, il
desired, on payment of the usual fees for copies.
In case of opposition by any person to the extern
sion of patent, both parties may take testimony,
each giving reasonable notice to the other of the
time and place oftaking said testimony, which shall
be taken according TO the rules prescribed by the
Commissioner of Patents in cases Of interference
All arguments submitted to the board must be in
writing.
In conclusion, the undersigned would remark
generally, that monopoly of his invention is Sc
cured by law to the inventor for the term of four
teen years. This is done with view to compen-
safe him for his time and expense in originating and
perfecting it. At the end of the time for width his
patent runs, his monopoly should cease, and me in
venton become public property, unless he canshow
good reasons to the contrary. The presumption is
always against his application; and if he tannoi
show thai his invention is novel; useful, valuable,
and important to the public, and that, having made
all reasonable effort to introduce it into general use
he has not been adequately remunerated for his
time and expenses in discovering and perfecting it,
the board cannot grant an extension.
JAMES BUCHANAN,
Secretary of State.
EDMUND BURKE,
Commissioner Of Patents.
S. BARTON,
Solicitor of the Treasury.
hepublishers of the following papers will please
insert the. above notice twice each week for two
months, and send their bills to this office for pay.
ment, viz: Union, Constitution, and United States
Journal Washington; Republican and Argus, Bal.
timore; keystone, Philadelphia; Union, Harris
burg; Morning News and Jcffersonian, New York
Herald and Gazette, Providence; Post, Boston; Ad-
vertiser, Lowell; n. III Patriot, Concord; States.
man, Columbus, Ohio; Kentucky Democrat, Louis.
vile; Courier, New Orleans.
June 03--gawOtn .L