US2624739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alpha, alpha diaryl piperidino methanols
Assignee: WM S MERRELL CO
•
Filing: 1949-11-23
•
Granted: 1953-01-06
•
Expires: 1969-11-23
Abstract
No abstract record available.
Inventors
- 👤 Harold W Werner
- 👤 Charles H Tilford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:45
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/08; C07D211/18; C07D211/20; C07D211/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
THE COMPOUNDS OF THE GENERAL FORMULA
Claim 2
Dependent Claim
6 words
THE COMPOUNDS OF THE GENERAL 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) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |