US2846498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television optical filter system
Assignee: MOORE AND HALL
•
Filing: 1952-03-28
•
Granted: 1958-08-05
•
Expires: 1972-03-28
Abstract
No abstract record available.
Inventors
- 👤 Toulon Pierre Marie Gabriel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:43
CPC Classifications
A; A21; A21D; A21D2/00; A21D2/08; A21D2/24; A21D2/26; A21D2/261; A21D2/263; G; G02; G02B; G02B5/00; G02B5/20; G02B5/201; H; H01; H01J; H01J29/00; H01J29/86; H01J29/89; H01J29/898
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2024051A
Cited
US2274039A
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US2570723A
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US2630485A
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US2689879A
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US2720553A
Cited
US2728814A
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 |