US2939909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television system
Assignee: Westinghouse Electric Corp
•
Filing: 1955-07-06
•
Granted: 1960-06-07
•
Expires: 1975-07-06
Abstract
No abstract record available.
Inventors
- 👤 Pierre M G Toulon
- 👤 Francis T Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:03
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/12; H04N7/122; H04N7/125; H04N11/00; H04N11/02; H04N3/00; H04N3/10; H04N3/30; H04N3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2479880A
Cited
US2321611A
Cited
US2516587A
Cited
US2629010A
Cited
US2623196A
Cited
US2676200A
Cited
US2784256A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-07 | 1963-12-07 | 1964-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-07 | 1967-12-07 | 1968-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-07 | 1971-12-07 | 1972-06-07 | $7700.00 | Window Closed / Lapsed |