Are desirable if an inventor is not fully prepared to apply for a Patent. A Caveat affords protection for one year against the issue of a patent to another for the same invention. Caveat papers should be carefully prepared.
The Government fee on filing a Caveat is $10, and Munn & Co.'s charge for preparing the necessary papers is usually from $10 to $12.
REISSUES.
A patent when discovered to be defective may be reissued by the surrender of the original patent, and the filing of amended papers. This proceeding should be taken with great care.
DESIGNS, TRADE-MARKS, & COMPOSITIONS
Can be patented for a term of years, also new medicines or medical compounds, and useful mixtures of all kinds.
When the invention consists of a medicine or compound, or a new article of manufacture, or a new composition, samples of the article must be furnished, neatly put up. There should also be forwarded a full statement of its ingredients, proportions, mode of preparation, uses, and merits.
Canadians and all other foreigners can now obtain patents upon the same terms as citizens.
EUROPEAN PATENTS.
Munn & Co. have solicited a larger number of European Patents than any other agency. They have agents located at London, Paris, Brussels, Berlin, and other chief cities. A pamphlet containing a synopsis of the Foreign Patent Laws sent free.