US2811533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbonato nitriles
Assignee: Rohm and Haas Co
•
Filing: 1954-04-06
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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 13:26
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
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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 |