Patent US2965671A successfully refreshed from Google Patents.
US2965671A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for production of amino compounds
Assignee: Monsanto Chemicals Ltd
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Filing: 1957-04-22
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Granted: 1960-12-20
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Expires: 1977-04-22
Abstract
No abstract record available.
Inventors
- 👤 Roy A Hughes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:56
CPC Classifications
C; C07; C07C; C07C255/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
THE PROCESS FOR PRODUCING B-AMINONITRILES AND BAMINOESTERS WHICH COMPRISES REACTING A TERT-CARBINAMINE OF THE FORMULA SP* RR''R"CNH2
Claim 2
Dependent Claim
17 words
THE PROCESS FOR PRODUCING B-AMINONITRILES AND BAMINOESTERS WHICH COMPRISES REACTING A TERT-CARBINAMINE OF THE FORMULA SP* RR''R"CNH2
References Cited (Backward Citations)
US1992615A
Cited
US2448013A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |