Patent US2774769A successfully refreshed from Google Patents.
US2774769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imidazolylpropionyl choline salts
Assignee: F Hoffmann La Roche AG
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Filing: 1955-10-28
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Granted: 1956-12-18
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Expires: 1975-10-28
Abstract
No abstract record available.
Inventors
- 👤 Stempel Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:55
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/64
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A MEMBER OF THE GROUP CONSISTING OF (B-(4IMIDAZOLYL)PROPIONYL)CHOLINE AND PHARMACEUTICALLY ACCEPTABLE, WATER-SOLUBLE ACID SALTS THEREOF.
Claim 2
Dependent Claim
15 words
A MEMBER OF THE GROUP CONSISTING OF (B-(4IMIDAZOLYL)PROPIONYL)CHOLINE AND PHARMACEUTICALLY ACCEPTABLE, WATER-SOLUBLE ACID SALTS THEREOF.
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) | 1959-12-18 | 1960-06-18 | 1960-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-12-18 | 1964-06-18 | 1964-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-12-18 | 1968-06-18 | 1968-12-18 | $7700.00 | Window Closed / Lapsed |