US2824923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic relay
Assignee: International Standard Electric Corp
•
Filing: 1953-12-30
•
Granted: 1958-02-25
•
Expires: 1973-12-30
Abstract
No abstract record available.
Inventors
- 👤 Montchausse Andre Jean
- 👤 Dautry Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:51
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/56; H01H50/58
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2077091A
Cited
US2282687A
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US2235861A
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US2401213A
Cited
GB620972A
Cited
US2473982A
Cited
US2602867A
Cited
US2612367A
Cited
US2686850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |