US2485310A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Video black clipper
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1946-12-12
•
Granted: 1949-10-18
•
Expires: 1966-12-12
Abstract
No abstract record available.
Inventors
- 👤 Patremio Salvatore Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:05
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/16; H04N5/165
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2212199A
Cited
US2171536A
Cited
GB472401A
Cited
US2244239A
Cited
US2295330A
Cited
US2207048A
Cited
US2321343A
Cited
US2305902A
Cited
US2366358A
Cited
US2445040A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-17 | 1953-04-18 | 1953-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-17 | 1957-04-18 | 1957-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-17 | 1961-04-18 | 1961-10-18 | $7700.00 | Window Closed / Lapsed |