Patent US2676287A successfully refreshed from Google Patents.
US2676287A
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US
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Electrical condenser and laminated sealing means therefor
Assignee: Individual
•
Filing: 1950-01-18
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Granted: 1954-04-20
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Expires: 1970-01-18
Abstract
No abstract record available.
Inventors
- 👤 Joseph B Brennan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:44
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/10; H01G2/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US737720A
Cited
US865907A
Cited
GB288149A
Cited
GB324995A
Cited
US2018486A
Cited
US2144959A
Cited
US2202166A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-19 | 1957-10-19 | 1958-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-19 | 1961-10-19 | 1962-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-19 | 1965-10-19 | 1966-04-20 | $7700.00 | Window Closed / Lapsed |