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US3523264A
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Assignee: English Electric Co Ltd
•
Filing: 1968-03-29
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Granted: 1970-08-04
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Expires: 1988-03-29
Abstract
No abstract record available.
Inventors
- 👤 John Feenan
- 👤 Ronald Vincent Wafer
- 👤 Eric Jacks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:17
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/04; H01H85/041; H01H85/042; H01H85/05; H01H85/055; H01H85/08; H01H85/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1927905A
Cited
US2866037A
Cited
GB807347A
Cited
US3147355A
Cited
US3134874A
Cited
US3183327A
Cited
US3391369A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-03 | 1974-02-02 | 1974-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-03 | 1978-02-02 | 1978-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-03 | 1982-02-02 | 1982-08-04 | $7700.00 | Window Closed / Lapsed |