Patent US3531584A successfully refreshed from Google Patents.
US3531584A
Expired / Lapsed
US
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Color video camera and image recording systems utilizing striped filters
Assignee: Bell and Howell Co
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Filing: 1967-10-10
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Granted: 1970-09-29
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Expires: 1987-10-10
Abstract
No abstract record available.
Inventors
- 👤 Norton W Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 07:15
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/84; H04N23/00; H04N23/10; H04N23/13
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) | 1973-09-28 | 1974-03-30 | 1974-09-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-28 | 1978-03-30 | 1978-09-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-28 | 1982-03-30 | 1982-09-29 | $7700.00 | Window Closed / Lapsed |