Patent US3036248A successfully refreshed from Google Patents.
US3036248A
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Electrical time-overcurrent relays
Assignee: English Electric Co Ltd
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Filing: 1959-12-03
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Granted: 1962-05-22
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Expires: 1979-12-03
Abstract
No abstract record available.
Inventors
- 👤 Nellist Brian David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:10
CPC Classifications
H; H02; H02H; H02H3/00; H02H3/08; H02H3/093; G; G04; G04C; G04C3/00; G04C3/04; H01; H01H; H01H53/00; H01H53/10; H01H53/12; H01H71/00; H01H71/10; H01H71/12; H01H71/42; H01H71/44; H04; H04M; H04M3/00; H04M3/08; H04M3/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-21 | 1965-11-20 | 1966-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-21 | 1969-11-20 | 1970-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-21 | 1973-11-20 | 1974-05-22 | $7700.00 | Window Closed / Lapsed |