Patent US2811603A successfully refreshed from Google Patents.
US2811603A
Expired / Lapsed
US
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Low-voltage relay device
Assignee: Individual
•
Filing: 1954-07-22
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Granted: 1957-10-29
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Expires: 1974-07-22
Abstract
No abstract record available.
Inventors
- 👤 Samuel J Koch
- 👤 Applodt Edward
- 👤 Feldman Raymond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 05:50
CPC Classifications
H; H01; H01H; H01H37/00; H01H37/02; H01H37/32; H01H37/46; H01H37/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2373103A
Cited
US1867212A
Cited
US1868500A
Cited
US1894095A
Cited
US2070175A
Cited
US2706757A
Cited
US2719893A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |