Patent GB190814042A successfully refreshed from Google Patents.
US2680148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Still picture recorder for television receivers
Assignee: Individual
•
Filing: 1949-10-29
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Granted: 1954-06-01
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Expires: 1969-10-29
Abstract
No abstract record available.
Inventors
- 👤 Ellison S Purington
- 👤 Jr John Hays Hammond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:47
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/84; H04N5/843; H04N5/846
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2281312A
Cited
US2294809A
Cited
US2420029A
Cited
US2429921A
Cited
US2504734A
Cited
US2489017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |