Patent US1897601A successfully refreshed from Google Patents.
Patent US2846497A successfully refreshed from Google Patents.
US2846497A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television systems
Assignee: RCA Corp
•
Filing: 1953-03-05
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Granted: 1958-08-05
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Expires: 1973-03-05
Abstract
No abstract record available.
Inventors
- 👤 Ralph C Kennedy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:20
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/16; H04N7/162
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2501274A
Cited
US2656406A
Cited
US2656410A
Cited
US2678347A
Cited
US2664460A
Cited
US2731620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-04 | 1962-02-03 | 1962-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-04 | 1966-02-03 | 1966-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-04 | 1970-02-03 | 1970-08-05 | $7700.00 | Window Closed / Lapsed |