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Patent US2758232A successfully refreshed from Google Patents.
US2758232A
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Vacuum discharge gauge
Assignee: Consolidated Electrodynamics Corp
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Filing: 1951-08-17
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Granted: 1956-08-07
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Expires: 1971-08-17
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Fox
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:38
CPC Classifications
H; H01; H01J; H01J41/00; H01J41/02; H01J41/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2497823A
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US2490468A
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GB630885A
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US2582647A
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US2625586A
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US2648818A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-08-07 | 1960-02-06 | 1960-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-08-07 | 1964-02-06 | 1964-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-08-07 | 1968-02-06 | 1968-08-07 | $7700.00 | Window Closed / Lapsed |