US3183159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized partial thromboplastin reagent
Assignee: Ortho Pharmaceutical Corp
•
Filing: 1962-03-20
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Granted: 1965-05-11
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Expires: 1982-03-20
Abstract
No abstract record available.
Inventors
- 👤 Heron O Singher
- 👤 Jr Ralph Wellerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:21
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/86
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A REAGENT FOR THE PARTIAL THROMBOPLASTIN TIME TEST COMPRISING ETHER SOLUBLE CEPHALIN DERIVED FROM BRAIN TISSUE STABILIZED BY THE PRESENCE OF FROM ABOUT 0.001% TO ABOUT 0.01% SODIUM ETHYLMERCURITHIOSALICYLATE.
Claim 2
Dependent Claim
29 words
A REAGENT FOR THE PARTIAL THROMBOPLASTIN TIME TEST COMPRISING ETHER SOLUBLE CEPHALIN DERIVED FROM BRAIN TISSUE STABILIZED BY THE PRESENCE OF FROM ABOUT 0.001% TO ABOUT 0.01% SODIUM ETHYLMERCURITHIOSALICYLATE.
References Cited (Backward Citations)
US2516216A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-10 | 1968-11-09 | 1969-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-10 | 1972-11-09 | 1973-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-10 | 1976-11-09 | 1977-05-11 | $7700.00 | Window Closed / Lapsed |