US2513996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reaction of a primary amine with an imine
Assignee: Shell Development Co
•
Filing: 1947-12-19
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Granted: 1950-07-04
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Expires: 1967-12-19
Abstract
No abstract record available.
Inventors
- 👤 Vernon E Haury
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:31
CPC Classifications
C; C07; C07C; C07C249/00; C07C249/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
36 words
A PROCESS OF PRODUCING AN IMINE WHICH COMPRISES REACTING A PRIMARY AMINE OF THE FORMULA RNH2 WHEREIN R IS A HYDROCARBON RADICAL HAVING NOT MORE THAN ONE OLEFINIC DOUBLE BOND, WITH AN IMINE OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-03 | 1954-01-02 | 1954-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-03 | 1958-01-02 | 1958-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-03 | 1962-01-02 | 1962-07-04 | $7700.00 | Window Closed / Lapsed |