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Generated: October 23, 2017

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Details for Patent: 4,839,350

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Summary for Patent: 4,839,350

Title: Cephalosporin compounds and the production thereof
Abstract:A class of new caphalosporin compounds (syn-isomer) is now provided, which is useful as antibacterial agent and is represented by the general formula (I) ##STR1## wherein R.sup.1 is an amino group or a protected amino group; R.sup.2 is a lower alkyl group, a carboxymethyl group or a protected carboxymethyl group; R.sup.3 is a hydrogen atom, a salt-forming cation or a carboxyl-protecting group; A is an unsubstituted or substituted phenyl group, an unsubstituted or substituted furyl group, an unsubstituted or substituted thiazolyl group or an unsubstituted or substituted 3-lower-alkylthiazolio group, and a pharmaceutically acceptable salt or ester thereof.
Inventor(s): Atsumi; Kunio (Kawasaki, JP), Sakagami; Kenji (Kawasaki, JP), Yamamoto; Yuichi (Yokohama, JP), Yoshida; Takashi (Tokyo, JP), Nishihata; Ken (Yokohama, JP), Kondo; Shinichi (Yokohama, JP), Fukatsu; Shunzo (Tokyo, JP)
Assignee: Meiji Seika Kaisha, Ltd. (Tokyo, JP) Susumu Mitsuhashi (Tokyo, JP)
Application Number:07/036,124
Patent Claim Types:
see list of patent claims
Compound; Composition;

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Foreign Priority and PCT Information for Patent: 4,839,350

Foriegn Application Priority Data
Foreign Country Foreign Patent Number Foreign Patent Date
Japan59-186464Sep 07, 1984
Japan60-157005Jul 18, 1985

International Patent Family for Patent: 4,839,350

Country Document Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Canada1272714► Subscribe
China85106733► Subscribe
China1034940► Subscribe
Germany3579399► Subscribe
European Patent Office0175610► Subscribe
Spain546749► Subscribe
Austria56017► Subscribe
Spain8704955► Subscribe
Ireland852071► Subscribe
Ireland58487► Subscribe
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The estimated expiration dates shown above are derived by simply adding 20 years to the priority date.
Due to the complexity of determining patent expirations even in a single country, compounded by the diversity of global patent laws, it is advisable to have patent counsel verify freedom to operate.

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