US2822503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized tv system
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1953-06-01
•
Granted: 1958-02-04
•
Expires: 1973-06-01
Abstract
No abstract record available.
Inventors
- 👤 Edward J Campbell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:36
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/18; H04N3/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2679550A
Cited
US2490743A
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US2536857A
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US2697798A
Cited
US2657333A
Cited
US2726340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-03 | 1961-08-05 | 1962-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-03 | 1965-08-05 | 1966-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-03 | 1969-08-05 | 1970-02-04 | $7700.00 | Window Closed / Lapsed |