US2611818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination radio and television receiving system
Assignee: RCA Corp
•
Filing: 1949-12-01
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Granted: 1952-09-23
•
Expires: 1969-12-01
Abstract
No abstract record available.
Inventors
- 👤 Winfield R Koch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:28
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/005; H04B1/0053; H04B1/006; H04B1/06; H04B1/16; H04B1/26; H04N; H04N5/00; H04N5/44; H04N5/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |