US3560475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prothrombin complex prepared by precipitation with polyethylene glycol
Assignee: Baxter International Inc
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Filing: 1969-06-19
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Granted: 1971-02-02
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Expires: 1989-06-19
Abstract
Abstract A PROTHROMBIN COMPLEX PREPARED FROM A PLASMA FRACTION CONTAINING FACTORS II, VII, IX AND X BY ADSORPTION WITH TRIBASIC CALCIUM PHOSPHATE, ELUTION WITH TRISODIUM CITRATE, AND MULTIPLE PRECIPITATIONS WITH POLYETHYLENE GLYCOL.
Inventors
- 👤 Lajos F Fekete
- 👤 Edward Shanbrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:01
CPC Classifications
C; C12; C12N; C12N9/00; C12N9/14; C12N9/48; C12N9/50; C12N9/64; C12N9/6421; C12N9/6424; C12N9/6429; C12Y; C12Y304/00; C12Y304/21; C12Y304/21005; A; A61; A61K; A61K38/00; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/829; Y10S530/83; Y10S530/831
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) | 1974-02-01 | 1974-08-03 | 1975-02-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-01 | 1978-08-03 | 1979-02-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-01 | 1982-08-03 | 1983-02-02 | $7700.00 | Window Closed / Lapsed |