Patent US3046601A successfully refreshed from Google Patents.
Patent US2111976A successfully refreshed from Google Patents.
US2111976A
Expired / Lapsed
US
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Test for syphilis and the process of preparing the reagent used in performing the test
Assignee: Individual
•
Filing: 1936-01-02
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Granted: 1938-03-22
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Expires: 1956-01-02
Abstract
No abstract record available.
Inventors
- 👤 Laughlen George Franklin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:23
CPC Classifications
G; G01; G01N; G01N33/00; G01N33/48; G01N33/50; G01N33/52; Y; Y10; Y10S; Y10S436/00; Y10S436/805; 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) | 1941-03-21 | 1941-09-20 | 1942-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1945-03-21 | 1945-09-20 | 1946-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1949-03-21 | 1949-09-20 | 1950-03-22 | $7700.00 | Window Closed / Lapsed |