US2578641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bicyclohexylamine salt of penicillin
Assignee: Bristol Laboratories Inc
•
Filing: 1946-09-04
•
Granted: 1951-12-11
•
Expires: 1966-09-04
Abstract
No abstract record available.
Inventors
- 👤 Douglas E Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:42
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A SALT OF PENICILLIN AND 4-CYCLOHEXYLCYCYCLOHEXYLAMINE.
Claim 2
Dependent Claim
6 words
A SALT OF PENICILLIN AND 4-CYCLOHEXYLCYCYCLOHEXYLAMINE.
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) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |