Patent US6226548B1 successfully refreshed from Google Patents.
US2664465A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television recorder
Assignee: General Precision Laboratory Inc
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Filing: 1950-04-18
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Granted: 1953-12-29
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Expires: 1970-04-18
Abstract
No abstract record available.
Inventors
- 👤 Frank N Gillette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:41
CPC Classifications
H; H03; H03K; H03K23/00; H03K23/82; 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)
US2251786A
Cited
US2275898A
Cited
US2525891A
Cited
US2604535A
Cited
US2613264A
Cited
US2565366A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |