Patent US3482091A successfully refreshed from Google Patents.
US3482091A
Expired / Lapsed
US
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Electron transparent shield for separating regions of different field intensities
Assignee: General Electric Co
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Filing: 1966-01-06
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Granted: 1969-12-02
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Expires: 1986-01-06
Abstract
No abstract record available.
Inventors
- 👤 George C Baldwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:03
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/02; G21K1/025; H; H01; H01J; H01J49/00; H01J49/44; H01J49/46; H01J49/48
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2449872A
Cited
US2708262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-12-01 | 1973-06-02 | 1973-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-01 | 1977-06-02 | 1977-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-01 | 1981-06-02 | 1981-12-02 | $7700.00 | Window Closed / Lapsed |