Patent US3341580A successfully refreshed from Google Patents.
US3341580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tetrahydrocarbyl phosphonium acid carboxylates
Assignee: Carlisle Chemical Works Inc
•
Filing: 1965-06-21
•
Granted: 1967-09-12
•
Expires: 1985-06-21
Abstract
No abstract record available.
Inventors
- 👤 Hechenbleikner Ingenuin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:18
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/54; C08; C08K; C08K5/00; C08K5/49; C08K5/50
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
A COMPOUND HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF (A) R4P+OOCR''.R''COOH; (B) R4P+OOC(CH2)NCOOH; (C) R4P+OOCCH=CHCOOH; AND
Claim 2
Dependent Claim
18 words
A COMPOUND HAVING A FORMULA SELECTED FROM THE GROUP CONSISTING OF (A) R4P+OOCR''.R''COOH; (B) R4P+OOC(CH2)NCOOH; (C) R4P+OOCCH=CHCOOH; AND
References Cited (Backward Citations)
US2102103A
Cited
US2310208A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |