US2796549A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronics matrix solver tube
Assignee: Individual
•
Filing: 1952-09-12
•
Granted: 1957-06-18
•
Expires: 1972-09-12
Abstract
No abstract record available.
Inventors
- 👤 Paul E Fiske
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:13
CPC Classifications
H; H01; H01J; H01J29/00; H01J29/46; H01J29/52; H01J29/525; H01J31/00; H01J31/08; H01J31/10; H01J31/12; H01J31/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2014106A
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US2107333A
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US2124740A
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US2283383A
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US2444221A
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US2379880A
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US2571723A
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US2533401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |