MURRILL & KEIZER, 44 HOLLIDAY ST., BALTIMORE.
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[Illustration: PATENTS]
=CAVEATS, COPYRIGHTS, TRADE MARKS, ETC.=
Messrs. Munn & Co., in connection with the publication of the
SCIENTIFIC AMERICAN, continue to examine Improvements, and to act as
Solicitors of Patents for Inventors.
In this line of business they have had OVER THIRTY YEARS' EXPERIENCE,
and now have _unequaled facilities_ for the preparation of Patent
Drawings, Specifications, and the Prosecution of Applications for
Patents in the United States, Canada, and Foreign Countries. Messrs.
Munn & Co. also attend to the preparation of Caveats, Trade Mark
Regulations, Copyrights for Books, Labels, Reissues, Assignments, and
Reports on Infringements of Patents. All business intrusted to them
is done with special care and promptness, on very moderate terms.
We send free of charge, on application, a pamphlet containing further
information about Patents and how to procure them; directions
concerning Trade Marks, Copyrights, Designs, Patents, Appeals,
Reissues, Infringements, Assignments, Rejected Cases, Hints on the
Sale of Patents, etc.
=_Foreign Patents._=--We also send, _free of charge_, a Synopsis of
Foreign Patent Laws, showing the cost and method of securing patents
in all the principal countries of the world. American inventors
should bear in mind that, as a general rule, any invention that is
valuable to the patentee in this country is worth equally as much in
England and some other foreign countries. Five patents--embracing
Canadian, English, German, French, and Belgian--will secure to an
inventor the exclusive monopoly to his discovery among about ONE
HUNDRED AND FIFTY MILLIONS of the most intelligent people in the
world. The facilities of business and steam communication are such
that patents can be obtained abroad by our citizens almost as easily
as at home. The expense to apply for an English patent is $75;
German, $100; French, $100; Belgian, $100; Canadian, $50.
=_Copies of Patents._=--Persons desiring any patent issued from
1836 to November 26, 1867, can be supplied with official copies at
reasonable cost, the price depending upon the extent of drawings and
length of specifications.
Any patent issued since November 27, 1867, at which time the Patent
Office commenced printing the drawings and specifications, may be had
by remitting to this office $1.
A copy of the claims of any patent issued since 1836 will be
furnished for $1.
When ordering copies, please to remit for the same as above, and
state name of patentee, title of invention, and date of patent.
A pamphlet, containing full directions for obtaining United States
patents sent free. A handsomely bound Reference Book, gilt edges,
contains 140 pages and many engravings and tables important to every
patentee and mechanic, and is a useful hand book of reference for
everybody. Price 25 cents, mailed free.
Address
=MUNN & CO.=,
Publishers SCIENTIFIC AMERICAN,
37 Park Row, N. Y.
_BRANCH OFFICE--Corner of F and 7th Streets, Washington, D. C._
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The "Scientific American" is printed with CHAS. ENEU JOHNSON & CO.'S
INK. Tenth and Lombard Sts., Philadelphia, and 59 Gold St., New York.
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