US2717191A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sinusoidal recorder
Assignee: Faximile Inc
•
Filing: 1952-05-20
•
Granted: 1955-09-06
•
Expires: 1972-05-20
Abstract
No abstract record available.
Inventors
- 👤 Frank A Hester
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:17
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1790452A
Cited
US2151936A
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US2250509A
Cited
US2368739A
Cited
US2412310A
Cited
US2505779A
Cited
US2527599A
Cited
US2560247A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |