Patent US2477300A successfully refreshed from Google Patents.
US3634581A
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Pyridazine reagents and means for stabilizing blood platelets therewith
Assignee: Armour Pharmaceutical Co
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Filing: 1968-12-23
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Granted: 1972-01-11
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Expires: 1988-12-23
Abstract
Abstract A WAY TO STABILIZE BLOOD PLATELETS AND THEREBY FACILITATE THEIR COUNTING FOR BLOOD DIAGNOSIS IS ACHIEVED BY THE ADDITION OF A MEASURED AMOUNT OF PYRIDAZINE TO A SAMPLE OF WHOLE BLOOD OR PLATELET RICH PLASMA PRIOR TO COUNTING AND WHILE THE SAMPLE IS FRESH.
Inventors
- 👤 William Raymond Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:08
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/10; G01N15/1031; G01N15/12; Y; Y10; Y10T; Y10T436/00; Y10T436/10; Y10T436/107497; Y10T436/108331
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |