US3419672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Filter for encoding color difference signals
Assignee: SRI International Inc
•
Filing: 1965-12-30
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Granted: 1968-12-31
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Expires: 1985-12-30
Abstract
No abstract record available.
Inventors
- 👤 Macovski Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:05
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/84; H04N9/00; H04N9/03
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2733291A
Cited
US3300580A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |