Patent US3890788A successfully refreshed from Google Patents.
US3140282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of alpha-aminobenzylpenicillins
Assignee: Bristol Myers Co
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Filing: 1962-03-05
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Granted: 1964-07-07
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Expires: 1982-03-05
Abstract
No abstract record available.
Inventors
- 👤 David A Johnson
- 👤 Wolfe Saul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:33
CPC Classifications
C; C07; C07D; C07D499/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
37 words
A PROCESS FOR THE PRODUCTION OF AN A-AMINOBENZYLPENICILLIN WHICH COMPRISES MIXING ABOUT 1.0 TO 3.0 MOLES (PER MOLE OF 6-AMINOPENICILLANIC ACID) OF A 2-PHENYLGLYCYL CHLORIDE HYDROCHLORIDE SELECTED FROM THE GROUP CONSISTING OF THOSE COMPOUNDS HAVING THE FORMULA
Claim 2
Dependent Claim
37 words
A PROCESS FOR THE PRODUCTION OF AN A-AMINOBENZYLPENICILLIN WHICH COMPRISES MIXING ABOUT 1.0 TO 3.0 MOLES (PER MOLE OF 6-AMINOPENICILLANIC ACID) OF A 2-PHENYLGLYCYL CHLORIDE HYDROCHLORIDE SELECTED FROM THE GROUP CONSISTING OF THOSE COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
US2985648A
Cited
US3025290A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-07 | 1968-01-06 | 1968-07-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-07 | 1972-01-06 | 1972-07-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-07 | 1976-01-06 | 1976-07-07 | $7700.00 | Window Closed / Lapsed |