US2904733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molded capacitors
Assignee: Sprague Electric Co
•
Filing: 1953-10-12
•
Granted: 1959-09-15
•
Expires: 1973-10-12
Abstract
No abstract record available.
Inventors
- 👤 Robinson Preston
- 👤 Paul H Netherwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:46
CPC Classifications
H; H01; H01G; H01G2/00; H01G2/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB562413A
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GB569202A
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US2596134A
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US2526688A
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US2594979A
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US2674646A
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US2628271A
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US2682626A
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US2713700A
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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) | 1962-09-14 | 1963-03-16 | 1963-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-09-14 | 1967-03-16 | 1967-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-09-14 | 1971-03-16 | 1971-09-15 | $7700.00 | Window Closed / Lapsed |