Patent US2927236A successfully refreshed from Google Patents.
US2927236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television picture tube
Assignee: SCIENT LAB DEVELOPMENTS Inc
•
Filing: 1955-10-21
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Granted: 1960-03-01
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Expires: 1975-10-21
Abstract
No abstract record available.
Inventors
- 👤 Andriulis Vytautas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:35
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/20; H01J31/201
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2199540A
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US2267083A
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US2409514A
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US2510267A
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US2784341A
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US2581487A
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US2711493A
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US2803781A
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US2752520A
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US2769116A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-01 | 1963-08-31 | 1964-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-01 | 1967-08-31 | 1968-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-01 | 1971-08-31 | 1972-03-01 | $7700.00 | Window Closed / Lapsed |