Patent US2694067A successfully refreshed from Google Patents.
US2694067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
delta 6-desoxymorphine compounds and processes of preparing the same
Assignee: Merck and Co Inc
•
Filing: 1952-05-08
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Granted: 1954-11-09
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Expires: 1972-05-08
Abstract
No abstract record available.
Inventors
- 👤 George B Payne
- 👤 Iii Karl Pfister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:04
CPC Classifications
C; C07; C07D; C07D489/00; C07D489/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP WHICH CONSISTS OF $6-DESOXYMORPHINE COMPOUNDS HAVING THE FORMULA:
Claim 2
Dependent Claim
14 words
A COMPOUND SELECTED FROM THE GROUP WHICH CONSISTS OF $6-DESOXYMORPHINE COMPOUNDS HAVING THE FORMULA:
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) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |