US3329682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
7, 8-dihydro-3', 4'-disubstituted cyclohexeno-(1', 2':14, 8)-codeinones
Assignee: Reckitt and Sons Ltd
•
Filing: 1965-07-07
•
Granted: 1967-07-04
•
Expires: 1985-07-07
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Bentley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:38
CPC Classifications
C; C07; C07D; C07D489/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
11 words
A CODEINE OR MORPHINE DERIVATIVE SELECTED FROM COMPOUNDS OF THE FORMULA:
Claim 2
Dependent Claim
11 words
A CODEINE OR MORPHINE DERIVATIVE SELECTED FROM COMPOUNDS OF THE FORMULA:
References Cited (Backward Citations)
GB937214A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-03 | 1971-01-02 | 1971-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-03 | 1975-01-02 | 1975-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-03 | 1979-01-02 | 1979-07-04 | $7700.00 | Window Closed / Lapsed |