Patent US2996573A successfully refreshed from Google Patents.
US2996573A
Expired / Lapsed
US
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Television projection system employing electrostatic printing
Assignee: AB Dick Co
•
Filing: 1957-05-13
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Granted: 1961-08-15
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Expires: 1977-05-13
Abstract
No abstract record available.
Inventors
- 👤 Jr Casper W Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:18
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2607845A
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US2573881A
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US2698928A
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US2657377A
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US2771336A
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US2736770A
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US2777745A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |