Patent US3341518A successfully refreshed from Google Patents.
US3341518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
6-[5'-loweralkyl-3'-phenylisothiazole-4'-carboxamido]penicillanic acids and salts thereof
Assignee: Bristol Banyu Research Institute Ltd
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Filing: 1966-07-25
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Granted: 1967-09-12
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Expires: 1986-07-25
Abstract
No abstract record available.
Inventors
- 👤 Naito Takayuki
- 👤 Nakagawa Susumu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 12:34
CPC Classifications
C; C07; C07D; C07D275/00; C07D275/02; C07D275/03; C07C; C07C255/00; C07C327/00; C07D261/00; C07D261/02; C07D261/06; C07D261/10; C07D261/18; C07D295/00; C07D295/04; C07D295/08; C07D295/084; C07D295/088; C07D295/16; C07D295/18; C07D295/194; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |