US3513201A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing 5-(3-alkylaminopropyl)-5h-dibenzo(a,d)cycloheptenes
Assignee: Merck and Co Inc
•
Filing: 1966-10-25
•
Granted: 1970-05-19
•
Expires: 1986-10-25
Abstract
No abstract record available.
Inventors
- 👤 Max Tishler
- 👤 John M Chemerda
- 👤 Janos Kollonitsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:05
CPC Classifications
C; C07; C07C; C07C271/00; C07C271/06; C07C271/08; C07C271/10; C07C271/14
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
GB618034A
Cited
US2649473A
Cited
US3019255A
Cited
US2920994A
Cited
US2985660A
Cited
US3324170A
Cited
US3264342A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-18 | 1973-11-17 | 1974-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-18 | 1977-11-17 | 1978-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-18 | 1981-11-17 | 1982-05-19 | $7700.00 | Window Closed / Lapsed |