US3822116A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reagent and method for calcium determination
Assignee: Medico Electronic Inc
•
Filing: 1972-08-30
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Granted: 1974-07-02
•
Expires: 1992-08-30
Abstract
Abstract A METHOD AND REAGENT FOR THE DETERMINATION OF CALCIUM IN BIOLOGICAL FLUIDS BY THE COMPLEX FORMATION WITH O-CRESOLPHTHALEIN COMPLEXION IN AN ALKALINE AMPHIPROTIC BUFFER IS DISCLOSED.
Inventors
- 👤 L Morin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:36
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/84; G01N2800/00; G01N2800/04
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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |