Patent US3766167A successfully refreshed from Google Patents.
US3766167A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orally active anticoagulant
Assignee: Research Corp
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Filing: 1971-03-26
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Granted: 1973-10-16
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Expires: 1991-03-26
Abstract
Abstract DISCLOSURE DESCRIBES A NEW ORALLY EFFECTIVE ANTICOAGULANT DERIVED FROM HEPARIN BY CONTROLLED HYDROLYSIS.
Inventors
- 👤 S Lasker
- 👤 M Chiu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:35
CPC Classifications
C; C08; C08B; C08B37/00; C08B37/006; C08B37/0063; C08B37/0075
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) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |