Patent US2094618A successfully refreshed from Google Patents.
Patent US820159A successfully refreshed from Google Patents.
Patent US2811533A successfully refreshed from Google Patents.
US2811533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbonato nitriles
Assignee: Rohm and Haas Co
•
Filing: 1954-04-06
•
Granted: 1957-10-29
•
Expires: 1974-04-06
Abstract
No abstract record available.
Inventors
- 👤 William L Riedeman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:09
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
26 words
A CARBONATO NITRILE OF A FATTY ACID WHICH CONTAINS 16 TO 22 CARBON ATOMS AND WHICH ALSO CONTAINS ONE TO THREE SUBSTITUENT GROUPS HAVING THE STRUCTURE
Claim 2
Dependent Claim
26 words
A CARBONATO NITRILE OF A FATTY ACID WHICH CONTAINS 16 TO 22 CARBON ATOMS AND WHICH ALSO CONTAINS ONE TO THREE SUBSTITUENT GROUPS HAVING THE STRUCTURE
References Cited (Backward Citations)
US921944A
Cited
US1995291A
Cited
US2316371A
Cited
US2527240A
Cited
US2601255A
Cited
US2667497A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |