Patent US3311609A successfully refreshed from Google Patents.
US3311609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Penicillin alcohols
Assignee: Bristol Myers Co
•
Filing: 1963-11-20
•
Granted: 1967-03-28
•
Expires: 1983-11-20
Abstract
No abstract record available.
Inventors
- 👤 Lee C Cheney
- 👤 Yvon G Perron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:14
CPC Classifications
C; C07; C07D; 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)
US3174964A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-27 | 1970-09-26 | 1971-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-27 | 1974-09-26 | 1975-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-27 | 1978-09-26 | 1979-03-28 | $7700.00 | Window Closed / Lapsed |