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Patent US2981792A successfully refreshed from Google Patents.
US2981792A
Expired / Lapsed
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Color correction computer for engraving machines
Assignee: Fairchild Semiconductor Corp
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Filing: 1957-10-31
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Granted: 1961-04-25
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Expires: 1977-10-31
Abstract
No abstract record available.
Inventors
- 👤 Farber Monroe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 06:27
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/46; H04N1/56; H04N1/60; H04N1/6016; H04N1/6022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2413706A
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US2434561A
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US2605348A
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USRE23914E
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US2740828A
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US2799722A
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US2790844A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-04-24 | 1964-10-24 | 1965-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-04-24 | 1968-10-24 | 1969-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-04-24 | 1972-10-24 | 1973-04-25 | $7700.00 | Window Closed / Lapsed |