Patent US2738570A successfully refreshed from Google Patents.
Patent US2998559A successfully refreshed from Google Patents.
US2998559A
Expired / Lapsed
US
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Dielectric contents gauge capacitor and method of manufacture
Assignee: —
•
Filing: —
•
Granted: 1961-08-29
•
Expires: 1978-08-29
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:53
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263; H; H01; H01G; H01G4/00; H01G4/002; H01G4/018; H01G4/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR938682A
Cited
US2540658A
Cited
FR938646A
Cited
US2582399A
Cited
US2715681A
Cited
US2713144A
Cited
US2741124A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |