US3736263A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reagent for determining cholesterol
Assignee: Research Corp
•
Filing: 1971-05-13
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Granted: 1973-05-29
•
Expires: 1991-05-13
Abstract
Abstract A REAGENT FOR PRODCING A COLOR FORMING REACTION WITH SOLUBILIZED CHOLESTEROL COMPRISING A MIXTURE OF FERROUS SULFATE AND SULFURIC ACID AND, OPTIONALLY, ACETIC ACID.
Inventors
- 👤 A Parekh
- 👤 D Jung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:00
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/92; G01N2800/00; G01N2800/04; G01N2800/044
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) | 1976-05-28 | 1976-11-27 | 1977-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-28 | 1980-11-27 | 1981-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-28 | 1984-11-27 | 1985-05-29 | $7700.00 | Window Closed / Lapsed |