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Patent US2996500A successfully refreshed from Google Patents.
US2996500A
Expired / Lapsed
US
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Diazoacetylserine compounds and methods for producing the same
Assignee: Parke Davis and Co LLC
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Filing: 1956-06-06
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Granted: 1961-08-15
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Expires: 1976-06-06
Abstract
No abstract record available.
Inventors
- 👤 Ehrlich John
- 👤 Knudsen Mildred Penner
- 👤 Quentin R Bartz
- 👤 Salvatore A Fusari
- 👤 Theodore H Haskell
- 👤 James A Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:19
CPC Classifications
C; C07; C07C; C07C245/00; C07C245/12; C07C245/14; C07C245/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND HAVING THE FORMULA,
Claim 2
Dependent Claim
5 words
A COMPOUND HAVING THE FORMULA,
References Cited (Backward Citations)
FR1088178A
Cited
FR1088177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |