US2992406A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: General Electric Co
•
Filing: 1957-08-22
•
Granted: 1961-07-11
•
Expires: 1977-08-22
Abstract
No abstract record available.
Inventors
- 👤 Amandus H Sharbaugh
- 👤 Peter L Auer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:18
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1980521A
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US1980821A
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US2195431A
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US2229679A
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US2279586A
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US2239695A
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US2305500A
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US2492493A
Cited
US2615075A
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US2636664A
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US2615940A
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US2748356A
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US2774807A
Cited
US2851618A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-07-10 | 1965-01-09 | 1965-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-10 | 1969-01-09 | 1969-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-10 | 1973-01-09 | 1973-07-11 | $7700.00 | Window Closed / Lapsed |