US2864863A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitro and polyamines and a process for producing these amines
Assignee: Commercial Solvents Corp
•
Filing: 1957-06-14
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Granted: 1958-12-16
•
Expires: 1977-06-14
Abstract
No abstract record available.
Inventors
- 👤 Vernon V Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:50
CPC Classifications
C; C07; C07C; C07C209/00; C07C209/44; C07C209/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
IN A PROCESS FOR THE PRODUCTION OF UNCYCLIZED AMINES, THE STEP WHICH CONSISTS OF CONTACTING A NITRILE HAVING THE STRUCTUAL FORMULA:
Claim 2
Dependent Claim
21 words
IN A PROCESS FOR THE PRODUCTION OF UNCYCLIZED AMINES, THE STEP WHICH CONSISTS OF CONTACTING A NITRILE HAVING THE STRUCTUAL FORMULA:
References Cited (Backward Citations)
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Cited
GB598309A
Cited
US2520104A
Cited
US2523337A
Cited
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Cited
US2681935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-15 | 1962-06-16 | 1962-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-15 | 1966-06-16 | 1966-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-15 | 1970-06-16 | 1970-12-16 | $7700.00 | Window Closed / Lapsed |