US3382999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode-ray tubes and method of reinforcing the tubes
Assignee: OI Glass Inc
•
Filing: 1964-12-14
•
Granted: 1968-05-14
•
Expires: 1984-12-14
Abstract
No abstract record available.
Inventors
- 👤 Daryl E Powell
- 👤 Burton W Spear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:10
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/86; H01J29/87; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49888
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2083198A
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US2293529A
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US2703373A
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US2785820A
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GB753696A
Cited
US2874017A
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US3166211A
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US3222206A
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US3113347A
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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) | 1971-05-14 | 1971-11-13 | 1972-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-05-14 | 1975-11-13 | 1976-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-05-14 | 1979-11-13 | 1980-05-14 | $7700.00 | Window Closed / Lapsed |