US3332950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
14-hydroxydihydronormorphinone derivatives
Assignee: EIDP Inc
•
Filing: 1966-12-06
•
Granted: 1967-07-25
•
Expires: 1986-12-06
Abstract
No abstract record available.
Inventors
- 👤 Blumberg Harold
- 👤 Irwin J Pachter
- 👤 Matossian Zaven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:18
CPC Classifications
C; C07; C07D; C07D489/00; C07D489/06; C07D489/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) N - SUBSTITUTED 14 - HYDROXYDIHYDRONORMORPHINONE WHEREIN THE N-SUBSTITUENT IS 3''-METHYL-2''-BUTENYL, CYCLOPROPYLMETHYL OR CYCLOBUTYLMETHYL, AND (2) THE ADDITION SALTS OF (1) WITH PHARMACEUTICALLY ACCEPTABLE ACIDS.
Claim 2
Dependent Claim
34 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) N - SUBSTITUTED 14 - HYDROXYDIHYDRONORMORPHINONE WHEREIN THE N-SUBSTITUENT IS 3''-METHYL-2''-BUTENYL, CYCLOPROPYLMETHYL OR CYCLOBUTYLMETHYL, AND (2) THE ADDITION SALTS OF (1) WITH PHARMACEUTICALLY ACCEPTABLE ACIDS.
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |