US2729672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-hygroscopic choline salts
Assignee: Wyeth Holdings LLC
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Filing: 1953-07-28
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Granted: 1956-01-03
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Expires: 1973-07-28
Abstract
No abstract record available.
Inventors
- 👤 Callahan Francis Marc
- 👤 Swanenburg John Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:25
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/09; A; A61; A61K; A61K31/00; A61K31/185; A61K31/19; A61K31/194; A61K31/20; A61K31/21; A61K31/215; A61K31/22; A61K31/66; A61K31/683; A61K31/685; A61K2300/00
Claims Analysis
Total Claims: 0
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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) | 1959-01-02 | 1959-07-04 | 1960-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-02 | 1963-07-04 | 1964-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-02 | 1967-07-04 | 1968-01-03 | $7700.00 | Window Closed / Lapsed |