Patent US2463765A successfully refreshed from Google Patents.
US2463765A
Expired / Lapsed
US
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Manufacture of electrical condensers
Assignee: A H HUNT Ltd
•
Filing: 1944-11-06
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Granted: 1949-03-08
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Expires: 1964-11-06
Abstract
No abstract record available.
Inventors
- 👤 Grouse Richard Alfred
- 👤 Bettridge Frederick Leo George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:16
CPC Classifications
H; H01; H01G; H01G4/00; H01G4/002; H01G4/005; H01G4/015; Y; Y10; Y10T; Y10T29/00; Y10T29/43; Y10T29/435
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB396453A
Cited
US2088949A
Cited
US2171231A
Cited
US2100045A
Cited
US2138892A
Cited
GB503851A
Cited
US2224288A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-07 | 1952-09-06 | 1953-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-07 | 1956-09-06 | 1957-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-07 | 1960-09-06 | 1961-03-08 | $7700.00 | Window Closed / Lapsed |