Patent US2803732A successfully refreshed from Google Patents.
US2803732A
Expired / Lapsed
US
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High-speed r. f. sealing
Assignee: GTE Sylvania Inc
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Filing: 1952-01-17
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Granted: 1957-08-20
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Expires: 1972-01-17
Abstract
No abstract record available.
Inventors
- 👤 Wade Orison
- 👤 Ray John Gilbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:49
CPC Classifications
H; H01; H01J; H01J5/00; H01J5/20; H01J2893/00; H01J2893/0033; H01J2893/0037
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2279854A
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US2512718A
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US2537289A
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US2490206A
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US2493771A
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US2511059A
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US2625637A
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US2542393A
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US2627416A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |