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Patent US2506446A successfully refreshed from Google Patents.
US2506446A
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Electrical condenser
Assignee: Individual
•
Filing: 1944-11-13
•
Granted: 1950-05-02
•
Expires: 1964-11-13
Abstract
No abstract record available.
Inventors
- 👤 Dubilier Philip
- 👤 Katzman Jacob
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:58
CPC Classifications
H; H01; H01G; H01G13/00; H01G13/003; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1307341A
Cited
US1274380A
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US1603640A
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US1883932A
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US1871492A
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US1973039A
Cited
US1973038A
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US2101896A
Cited
US2207707A
Cited
GB502039A
Cited
US2168154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-01 | 1953-10-31 | 1954-05-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-01 | 1957-10-31 | 1958-05-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-01 | 1961-10-31 | 1962-05-02 | $7700.00 | Window Closed / Lapsed |