The daily union. [volume] (Washington [D.C.]) 1845-1857, 1845-07-16
EXTENSION OF PATENTS.
tcIRcuLAR.l

PATENT OFFICE, june 81, l645
ME undersigned, constituted by law board I,
4 decide upon applications for the extension o
patents, have adopted the following suggestions ans
rules, for the benefit of those persons who may
hereafter apply for extensions. ha'
The questions which arise on each application fo
an extension are ae
l. Is the invention novel?
>. Is it paiuabie and important to the publicl
4. Has the inventor been adequately remunerated
for his time and expense in originating and perfect
ing III
5, Has he used due diligence in introducing his
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. tn
To enable the board to come to a correct conclu.
sion in regard TO the third point of INQUIRY the APP
plcant should, If possible procure the testimony Of
persons disntcrested in the invention, which test
mony should be taken under oath.
In regard 10 the fourth and fifth points of inquiry
in addition to his own oath showing his receipts and
expenditures on account of the invention, by which
Its value is to be ascertaned, the applicant should
show, by the testimony of disinterested witnesses
on oath, that he has taken all reasonable measures
to introduce his invention into general use, and that
without default neglect on his part he has failed
to obtain from the use and sale Of the invention
reasonable remuneration for the time, ingenuity
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 invention, will be ready fifteen days
before the day appointed for the hearing, which viii
be open for inspection at the Patent Office; copies OF
which will be furnished to all parties Interested,
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 of taking said testimony, which shall
be taken according to the rules prescribed by the
Commissioners 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
it. AT the end Of the time for which his
patent runs, his monopoly should cease and the in
venton become public property, unless he can show
good reasons TO the contrary. The presumption is
always against his application; and if he cannot
show tina; 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,
EDMUND BURKE,
Commissioner of Patents
S. BARTON,
Solicitor of the Treasury.
Thepublishers 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 Jefersonian New York;
Herald and Gazette, Providence; Post Boston, Ad-
vertser, Lowell; N. Fl. Patriot, Concord; States
man, Columbus, Ohio; Kentucky Democrat, Louis
vile; Courier, New Orleans.
June 23--2aw2m g ssae .aaa4