US2841669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid-operated relay
Assignee: General Electric Co
•
Filing: 1955-11-29
•
Granted: 1958-07-01
•
Expires: 1975-11-29
Abstract
No abstract record available.
Inventors
- 👤 Leonard W Cook
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:04
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE312130C
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US483123A
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FR431793A
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US1750268A
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CH132138A
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US1877480A
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GB407853A
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US2051622A
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US2190650A
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US2335888A
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US2738395A
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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) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |