Patent US2653187A successfully refreshed from Google Patents.
US2653187A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Synchronizing apparatus
Assignee: RCA Corp
•
Filing: 1950-04-04
•
Granted: 1953-09-22
•
Expires: 1970-04-04
Abstract
No abstract record available.
Inventors
- 👤 Luck David George Croft
- 👤 Jr Leslie Lewis Burns
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:14
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/44; H04N9/455
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2141343A
Cited
US2230284A
Cited
US2378746A
Cited
US2319789A
Cited
US2546972A
Cited
US2570775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |