Patent US3001995A successfully refreshed from Google Patents.
US3001995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
beta-cyanovinylamines
Assignee: Wyeth Holdings LLC
•
Filing: 1957-12-24
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Granted: 1961-09-26
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Expires: 1977-12-24
Abstract
No abstract record available.
Inventors
- 👤 Everett J Frazza
- 👤 Rapoport Lorence
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 06:40
CPC Classifications
C; C07; C07C; C07C255/00; C08; C08F; C08F20/00; C08F20/02; C08F20/42; C08F20/50
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
2 words
N-B-CYAONVINYL MORPHOLINE.
References Cited (Backward Citations)
US2211152A
Cited
US2459420A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-25 | 1965-03-27 | 1965-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-25 | 1969-03-27 | 1969-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-25 | 1973-03-27 | 1973-09-26 | $7700.00 | Window Closed / Lapsed |