US2499181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulsed light film projection for television transmissions
Assignee: General Electric Co
•
Filing: 1947-02-28
•
Granted: 1950-02-28
•
Expires: 1967-02-28
Abstract
No abstract record available.
Inventors
- 👤 Lloyd C Downes
- 👤 Joseph F Wiggin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:37
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/36; H04N3/40; H04N3/405; G; G03; G03B; G03B21/00; G03B21/14; G03B21/20; G03B21/2006; G03B21/2026; G03B21/2053; G03B21/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB191406051A
Cited
US1927474A
Cited
US2186013A
Cited
US2226108A
Cited
US2274709A
Cited
GB502051A
Cited
US2275898A
Cited
US2343971A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |