Patent soliciting and United States court practice, with remarks concerning specifications and claims, drawings, official examination, appeals, reissues, searches and reports, court practice, interferences, foreign patents, etc (1883)
Howson & Howson. [from old catalog] · [Philadelphia, Press of Times printing house] · leaf 119
PORTUGAL. Term of Patent.—Maximum fifteen years, butnot beyond the term of previous foreign patent. No ex-tension granted. Cost.—About S520. Note.—The invention must be put in operation inPortugal within the first half of the term of the patent. SWITZERLAND. No patents granted except in one canton… … BRAZIL. Term of Patent.—The duration of the patent isfixed by the Government, and varies from five to twentyyears. Cost.—About $350. Note.—A patent becomes void (i) if not workedwithin two years from the deUvcry of the patent; (2) ifthe invention be proved to be old. OTHER AMERICAN STATES. Patents…
Patents
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