US3346565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
1, 2, 3, 5-tetrahydro-4, 1-benzoxazepines and 3, 5-dehydro-4, 1-benzoxazepin-2-(1h)-ones
Assignee: Gruppo Lepetit SpA
•
Filing: 1964-05-21
•
Granted: 1967-10-10
•
Expires: 1984-05-21
Abstract
No abstract record available.
Inventors
- 👤 Testa Emilio
- 👤 Fontanella Luigi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:32
CPC Classifications
C; C07; C07D; C07D267/00; C07D267/02; C07D267/08; C07D267/12; C07D267/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A COMPOUND OF THE CLASS CONSISTING OF 3,5-DIHYDRO4,1-BENZOXAZEPINES OF THE FORMULA:
Claim 2
Dependent Claim
11 words
A COMPOUND OF THE CLASS CONSISTING OF 3,5-DIHYDRO4,1-BENZOXAZEPINES OF THE FORMULA:
References Cited (Backward Citations)
US3155649A
Cited
US3122554A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-09 | 1971-04-10 | 1971-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-09 | 1975-04-10 | 1975-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-09 | 1979-04-10 | 1979-10-10 | $7700.00 | Window Closed / Lapsed |