US2958720A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Capacitor end seal
Assignee: DEARBORN ELECTRONIC LAB OF DEL
•
Filing: 1955-03-25
•
Granted: 1960-11-01
•
Expires: 1975-03-25
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Simpson
- 👤 Benjamin S Naven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:33
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/224
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US908814A
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US1331091A
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US1727755A
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GB506024A
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US2251540A
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US2305901A
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GB560977A
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US2383973A
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US2665329A
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US2626985A
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US2664455A
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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) | 1963-11-01 | 1964-05-02 | 1964-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-01 | 1968-05-02 | 1968-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-01 | 1972-05-02 | 1972-11-01 | $7700.00 | Window Closed / Lapsed |