Patent US2985648A successfully refreshed from Google Patents.
US2985648A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha-aminobenzylpenicillins
Assignee: Individual
•
Filing: 1961-02-02
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Granted: 1961-05-23
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Expires: 1981-02-02
Abstract
No abstract record available.
Inventors
- 👤 Doyle Frank Peter
- 👤 Nayler John Herbert Charles
- 👤 Smith Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:23
CPC Classifications
C; C07; C07D; C07D499/00; C07D499/21; C07D499/44; C07D499/48; C07D499/58; C07D499/64; C07D499/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF THE ACIDS HAVING THE FORMULA
Claim 2
Dependent Claim
13 words
A MEMBER SELECTED FROM THE GROUP CONSISTING OF THE ACIDS HAVING 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) | 1964-05-22 | 1964-11-21 | 1965-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-05-22 | 1968-11-21 | 1969-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-05-22 | 1972-11-21 | 1973-05-23 | $7700.00 | Window Closed / Lapsed |