Patent US2669768A successfully refreshed from Google Patents.
US2669768A
Expired / Lapsed
US
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Production of multilinear screens
Assignee: RCA Corp
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Filing: 1950-03-07
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Granted: 1954-02-23
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Expires: 1970-03-07
Abstract
No abstract record available.
Inventors
- 👤 Alfred N Goldsmith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:42
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; H01J9/22; H01J9/227; H01J9/2277; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49826; Y10T29/49885; Y10T29/49904
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1957554A
Cited
US1876953A
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US2333641A
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US2280946A
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US2310863A
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US2359514A
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US2416056A
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US2566074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-02-22 | 1957-08-24 | 1958-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-02-22 | 1961-08-24 | 1962-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-02-22 | 1965-08-24 | 1966-02-23 | $7700.00 | Window Closed / Lapsed |