US2999049A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warfarin sodium and heparin sodium composition
Assignee: Wisconsin Alumni Research Foundation
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Filing: 1959-03-27
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Granted: 1961-09-05
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Expires: 1979-03-27
Abstract
No abstract record available.
Inventors
- 👤 Link Karl Paul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:51
CPC Classifications
A; A61; A61K; A61K31/00; A61K31/70; A61K31/715
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A NEW COMPOSITION OF MATTER IN DOSAGE UNIT FORM CONSISTING ESSENTIALLY OF 10-100 MG. OF WARFARIN SODIUM AND 25-100 MG. OF HEPARIN SODIUM, SAID WARFARIN SODUIM BEING CHARACTERIZED BY AN ALKALINE COLOR VALUE, EXPRESSED IN OPTIAL DENSITY, NOT EXCEEDING 0.1 AND BEING FURTHER CHARACTERIZED BY BEING SUBSTANTIALLY FREE FROM (A) BASIC SUBSTANCES WHICH BIND HEPARIN AND ANNUL THE HEPARIN EFFECT AND (B) PHENOLIC AND KETONE BODIES WHICH COUNTERACT THE HEPARIN CO-FACTOR OF PLASMA, AND SAID HEPARIN SODIUM BEING CHARACTERIZED BY HAVING AT LEAST 110 U.S.P. UNITS/MG. AND BY HAVING A NEGATIVE U.S.P TRICHLOROACETIC ACID PROTEIN PRECIPITATION TEST.
Claim 2
Dependent Claim
97 words
A NEW COMPOSITION OF MATTER IN DOSAGE UNIT FORM CONSISTING ESSENTIALLY OF 10-100 MG. OF WARFARIN SODIUM AND 25-100 MG. OF HEPARIN SODIUM, SAID WARFARIN SODUIM BEING CHARACTERIZED BY AN ALKALINE COLOR VALUE, EXPRESSED IN OPTIAL DENSITY, NOT EXCEEDING 0.1 AND BEING FURTHER CHARACTERIZED BY BEING SUBSTANTIALLY FREE FROM (A) BASIC SUBSTANCES WHICH BIND HEPARIN AND ANNUL THE HEPARIN EFFECT AND (B) PHENOLIC AND KETONE BODIES WHICH COUNTERACT THE HEPARIN CO-FACTOR OF PLASMA, AND SAID HEPARIN SODIUM BEING CHARACTERIZED BY HAVING AT LEAST 110 U.S.P. UNITS/MG. AND BY HAVING A NEGATIVE U.S.P TRICHLOROACETIC ACID PROTEIN PRECIPITATION TEST.
References Cited (Backward Citations)
US2777859A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-09-04 | 1965-03-06 | 1965-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-04 | 1969-03-06 | 1969-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-04 | 1973-03-06 | 1973-09-05 | $7700.00 | Window Closed / Lapsed |