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US1912188A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical fluid tester
Assignee: Individual
•
Filing: 1930-04-02
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Granted: 1933-05-30
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Expires: 1950-04-02
Abstract
No abstract record available.
Inventors
- 👤 George I Gann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:27
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/04; G01N27/06
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) | 1936-05-29 | 1936-11-28 | 1937-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-05-29 | 1940-11-28 | 1941-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-05-29 | 1944-11-28 | 1945-05-30 | $7700.00 | Window Closed / Lapsed |