US2433962A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Getter structure for electron discharge tubes
Assignee: UNITED ELECTRONICS Co
•
Filing: 1944-11-01
•
Granted: 1948-01-06
•
Expires: 1964-11-01
Abstract
No abstract record available.
Inventors
- 👤 Benjamin F Steiger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-10 01:37
CPC Classifications
H; H01; H01J; H01J7/00; H01J7/14; H01J7/18; H01J7/186
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US395962A
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US988148A
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US1967575A
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US1712370A
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US1966226A
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US2222055A
Cited
US2154131A
Cited
US2295694A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-01-05 | 1951-07-07 | 1952-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-01-05 | 1955-07-07 | 1956-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-01-05 | 1959-07-07 | 1960-01-06 | $7700.00 | Window Closed / Lapsed |