US3781414A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Orgotein-polystyrene latex diagnostic for rheumatoid factor
Assignee: GT Biopharma Inc
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Filing: 1971-08-31
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Granted: 1973-12-25
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Expires: 1991-08-31
Abstract
Abstract THE SENSITIVITY OF POLYSTYRENE LATEX SUSCEPTIBLE TO COAGULATION BY RHEUMATOID FACTOR-CONTAINING SERUM IS INCREASED BY A MIXTURE OF SUCH LATEX AND ORGOTEIN.
Inventors
- 👤 W Huber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:49
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/53; G01N33/564; G01N2800/00; G01N2800/10; G01N2800/101; G01N2800/102; Y; Y10; Y10S; Y10S436/00; Y10S436/819; Y10S436/822; Y10S436/826; Y10S530/00; Y10S530/81; Y10S530/812; Y10S530/815; Y10S530/816
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) | 1976-12-24 | 1977-06-25 | 1977-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-24 | 1981-06-25 | 1981-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-24 | 1985-06-25 | 1985-12-25 | $7700.00 | Window Closed / Lapsed |