US2739865A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic recorder
Assignee: Servo Corp of America
•
Filing: 1950-04-27
•
Granted: 1956-03-27
•
Expires: 1970-04-27
Abstract
No abstract record available.
Inventors
- 👤 Frank G Willey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:49
CPC Classifications
G; G06; G06K; G06K1/00; G06K1/02; G01; G01D; G01D15/00; G01D15/06; G01R; G01R13/00; G01R13/04; G01R13/14; G06K15/00; G06K15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2266401A
Cited
US2415229A
Cited
US2501790A
Cited
US2413962A
Cited
US2561345A
Cited
US2485591A
Cited
US2467202A
Cited
US2457131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-27 | 1959-09-26 | 1960-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-27 | 1963-09-26 | 1964-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-27 | 1967-09-26 | 1968-03-27 | $7700.00 | Window Closed / Lapsed |