Patent US3564089A successfully refreshed from Google Patents.
US3564089A
Expired / Lapsed
US
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Diagnostic reagent for syphilis
Assignee: Cooper Laboratories Inc
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Filing: 1966-09-29
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Granted: 1971-02-16
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Expires: 1986-09-29
Abstract
Abstract A REAGENT AND METHOD FOR THE SEROLOGICAL DIAGNOSIS OF SYPHILIS BY DETERMINING THE AGGLUTINATION OF ANTIGEN-COATED LATEX PARTICLES WITH A PATIENT''S SERUM IN WHICH THE REAGENT USED IN THE DIAGNOSIS CONSISTS OF POLYSTYRENE LATEX HAVING A PARTICLE SIZE OF FROM ABOUT 0.1 TO ABOUT 0.35 MICRON COATED WITH A COMBINATION OF FROM ABOUT 0.007 MG. TO ABOUT 0.187 MG. OF CARDIOLIPIN AND FROM ABOUT 0.0005 MG. TO ABOUT 0.03 MG. REITER PROTEIN ANTIGEN PER MG. OF LATEX SOLIDS.
Inventors
- 👤 Sandra Jean Kiddy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 06:03
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/569; G01N33/571; Y; Y10; Y10S; Y10S436/00; Y10S436/826
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) | 1974-02-15 | 1974-08-17 | 1975-02-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-15 | 1978-08-17 | 1979-02-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-15 | 1982-08-17 | 1983-02-16 | $7700.00 | Window Closed / Lapsed |