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![handle is hein.intprop/corep0257 and id is 1 raw text is: -26th CONGRESS, [SENATE.]
1st Session. [ Ill
REPORT
FROM
THE COMMISSIONER OF PATENTS,
SHOWING
The operations of his office during the year 1839.
JANUARY 24, 1S40.
Referred to the Committee on Patents and the Patent Office, and ordered to be printed.
PATENT OFFICE, January 1, 1840.
SIR: The Commissioner of Patents has the honor to transmit his
annual report.
Four hundred and twenty-five patents have been issued during 1839,
(including eight additional improvements to former patents,) of which
classified and alphabetical lists are annexed, marked A and B.
During the same period, three hundred and three patents have expired,
-as per list marked C.
The receipts of office for 1839 amount to $37,260, from which may be
deducted $5,769, paid on applications withdrawn.
The ordinary expenses of the Patent Office the past year, including
payments for the library and agricultural statistics, were $20,799 95,
leaving a surplus of $11,450 43 to be credited to the patent fund, as per
.statement marked E.
For the restoration of models, records, and drawings, under the act of 3
March, 1837, $7,973 57 have been expended, as per statement marked F.
The receipts of the office would have been nearly $2,000 more, had
not the late law permitted assignments to be recorded without charge, a-
gratuity, however, which has given much satisfaction.
In compliance with the act of 3d of March, 1839, I have published a,
digest of all patents granted by the United States, adding thereto. an
alphabetical index, and shall deposite in the Library of Congress nine
hundred copies of the same.
The old digest was very defective. A new arrangement has been
made, giving to each invention its appropriate classification.
A distribution of the new digest, will materially lessen the correspond-
-ence of the office, and guard citizens against the impositions of venders
of spurious patents. The volume contains above seven hundred and fifty-
pages.
The work was deemed necessary for daily reference in the office, and,
believing the appropriation adequate to cover the expenses, I did not delay-
the publication.
A small additional appropriation from the patent fund will be required
to complete payment for the same.
Eleven thousand five hundred and nine patents have been issued by
the United States previous to January, 1840.
Blair & Rives, printers,](ViewImageLocal?handle=hein.intprop/corep0257&div=1&collection=&method=preview&ext=.png&size=3)