US2887530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television synchronizing circuit
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1953-12-02
•
Granted: 1959-05-19
•
Expires: 1973-12-02
Abstract
No abstract record available.
Inventors
- 👤 Humbert P Pacini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:51
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/21; H04N5/213; H04N5/04; H04N5/08; H04N5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2464594A
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US2540512A
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US2601191A
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US2666815A
Cited
US2668234A
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BE504775A
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US2718552A
Cited
US2736768A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-18 | 1962-11-17 | 1963-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-18 | 1966-11-17 | 1967-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-18 | 1970-11-17 | 1971-05-19 | $7700.00 | Window Closed / Lapsed |