Patent US2422764A successfully refreshed from Google Patents.
US2422764A
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Electromagnetic relay
Assignee: Automatic Electric Laboratories Inc
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Filing: 1944-05-11
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Granted: 1947-06-24
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Expires: 1964-05-11
Abstract
No abstract record available.
Inventors
- 👤 Fredric E Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:24
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/546
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2147198A
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US798161A
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US1016833A
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US1864369A
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US2176020A
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US2295577A
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US2356836A
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US2376818A
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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) | 1950-06-23 | 1950-12-23 | 1951-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-06-23 | 1954-12-23 | 1955-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-06-23 | 1958-12-23 | 1959-06-24 | $7700.00 | Window Closed / Lapsed |