Patent US3278525A successfully refreshed from Google Patents.
US3278525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminoaryldisulfonic acid salts of alpha-aminoarylmethylpenicillins
Assignee: Bristol Myers Co
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Filing: 1964-06-08
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Granted: 1966-10-11
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Expires: 1984-06-08
Abstract
No abstract record available.
Inventors
- 👤 David A Johnson
- 👤 Herbert H Silvestri
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:30
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE GENERAL FORMULA
Claim 2
Dependent Claim
13 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2985648A
Cited
US3080356A
Cited
US3094519A
Cited
US3140282A
Cited
US3180862A
Cited
US3157640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-10 | 1970-04-11 | 1970-10-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-10 | 1974-04-11 | 1974-10-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-10 | 1978-04-11 | 1978-10-11 | $7700.00 | Window Closed / Lapsed |