US3050651A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High temperature electron discharge device and apparatus
Assignee: General Electric Co
•
Filing: 1956-09-04
•
Granted: 1962-08-21
•
Expires: 1976-09-04
Abstract
No abstract record available.
Inventors
- 👤 James E Beggs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:01
CPC Classifications
H; H01; H01J; H01J21/00; H01J21/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
BE535505A
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US1839899A
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US2189618A
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US2367331A
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US2493659A
Cited
US2609518A
Cited
US2754445A
Cited
US2846609A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |