US3308154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phenyl n-alkylcarbamyloxy-benzhydryl ketones
Assignee: Pharmacia and Upjohn Co
•
Filing: 1963-12-27
•
Granted: 1967-03-07
•
Expires: 1983-12-27
Abstract
No abstract record available.
Inventors
- 👤 Edward L Schumann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:24
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/76; C07C49/82; C07C49/83; C07C45/00; C07C45/51; C07C45/52; C07C45/61; C07C45/67; C07C45/673
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A PHENYL CARBAMYLOXYBENZHYDRYL KETONE OF THE FORMULA:
Claim 2
Dependent Claim
7 words
A PHENYL CARBAMYLOXYBENZHYDRYL KETONE OF THE FORMULA:
References Cited (Backward Citations)
US3067240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |