US4173566A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1-Benzhydryl-2-cyanoazetidine
Assignee: Merck Sharp & Dohme LLC
•
Filing: 1978-08-23
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Granted: 1979-11-06
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Expires: 1998-08-23
Abstract
Abstract 1-benzhydryl-2-cyanoazetidine is a novel intermediate for the synthesis of N-diphenylalkyl-2-benzyl azacyclic compounds.
Inventors
- 👤 Elijah H. Gold
- 👤 Daniel M. Solomon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:45
CPC Classifications
C; C07; C07D; C07D205/00; C07D205/02; C07D205/04; C07D207/00; C07D207/02; C07D207/04; C07D207/10; C07D207/12; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/18; C07D211/20; C07D211/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
1-benzhydryl-2-cyanoazetidine.
Claim 2
Dependent Claim
1 words
1-benzhydryl-2-cyanoazetidine.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-11-05 | 1983-05-07 | 1983-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-05 | 1987-05-07 | 1987-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-05 | 1991-05-07 | 1991-11-06 | $7700.00 | Window Closed / Lapsed |