Patent US447003A successfully refreshed from Google Patents.
Patent US2624751A successfully refreshed from Google Patents.
US2624751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trichloroethylidene cyanoacetic acid alkyl ester and process
Assignee: Monsanto Chemicals Ltd
•
Filing: 1951-03-23
•
Granted: 1953-01-06
•
Expires: 1971-03-23
Abstract
No abstract record available.
Inventors
- 👤 David T Mowry
- 👤 Arthur H Schlesinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:33
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
2 words
ALLYL 2,2,2-TRICHLOROETHYLIDENECYANOACETATE.
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) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |