US2942099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical projection system
Assignee: RCA Corp
•
Filing: 1958-04-11
•
Granted: 1960-06-21
•
Expires: 1978-04-11
Abstract
No abstract record available.
Inventors
- 👤 Norman R Goldstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:19
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2271; H01J9/2272; H01J9/2274
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2015344A
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US1967548A
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US2480178A
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US2600514A
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US2844710A
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US2817276A
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US2885935A
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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) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |