Patent US3041422A successfully refreshed from Google Patents.
US3041422A
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Relay
Assignee: North Electric Co
•
Filing: 1959-09-09
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Granted: 1962-06-26
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Expires: 1979-09-09
Abstract
No abstract record available.
Inventors
- 👤 Leonard J Greshel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:37
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/30; H01H50/54; H01H50/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2718568A
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US2777922A
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US2824189A
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US2810037A
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US2902565A
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US2941130A
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US2910559A
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US2951134A
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US2952755A
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US2960583A
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US2933572A
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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) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |