US2676173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Penicillin salts of oxybenzylisobutyl amines
Assignee: Schenley Industries Inc
•
Filing: 1952-02-16
•
Granted: 1954-04-20
•
Expires: 1972-02-16
Abstract
No abstract record available.
Inventors
- 👤 Hiltmann Rudolf
- 👤 Bauer Klaus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:39
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
AS A NEW CHEMOTHERAPEUTIC AGENT, A SUBSTANTIALLY PURE, CRYSTALLINE ORGANIC BASE SALT OF PENICILLIN WHEREIN THE ORGANIC BASE MOIETY IS A SUBSTANCE REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
26 words
AS A NEW CHEMOTHERAPEUTIC AGENT, A SUBSTANTIALLY PURE, CRYSTALLINE ORGANIC BASE SALT OF PENICILLIN WHEREIN THE ORGANIC BASE MOIETY IS A SUBSTANCE REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |