US3462444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel 4-benzylpiperidine derivatives
Assignee: Individual
•
Filing: 1961-10-09
•
Granted: 1969-08-19
•
Expires: 1981-10-09
Abstract
No abstract record available.
Inventors
- 👤 Arnold Heyworth Beckett
- 👤 Norman James Harper
- 👤 Alma Beryl Simmonds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:20
CPC Classifications
C; C07; C07D; C07D211/00; C07D211/04; C07D211/06; C07D211/36; C07D211/40; C07D211/44; C07D211/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A CHEMICAL COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
6 words
A CHEMICAL COMPOUND OF THE FORMULA:
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) | 1972-08-18 | 1973-02-17 | 1973-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-18 | 1977-02-17 | 1977-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-18 | 1981-02-17 | 1981-08-19 | $7700.00 | Window Closed / Lapsed |