Patent US2665309A successfully refreshed from Google Patents.
US2665309A
Expired / Lapsed
US
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Substituted glycinamides
Assignee: Wyeth LLC
•
Filing: 1951-01-04
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Granted: 1954-01-05
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Expires: 1971-01-04
Abstract
No abstract record available.
Inventors
- 👤 William F Bruce
- 👤 Seifter Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:42
CPC Classifications
C; C07; C07C; C07C237/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
SUBSTITUTED GLYCINAMIDES HAVING THE FORMULA
Claim 2
Dependent Claim
5 words
SUBSTITUTED GLYCINAMIDES HAVING THE FORMULA
References Cited (Backward Citations)
US2139190A
Cited
US2153707A
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US2295655A
Cited
US2336179A
Cited
US2447587A
Cited
US2520153A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |