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US2697156A
Expired / Lapsed
US
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Electric switch device
Assignee: Proctor Electric Co
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Filing: 1953-02-02
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Granted: 1954-12-14
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Expires: 1973-02-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Harvey E Hortman
- 👤 Turner Charles Roger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:38
CPC Classifications
H; H01; H01H; H01H19/00; H01H19/54; H01H19/60; H01H19/63; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18304; Y10T74/21; Y10T74/2101
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2602352A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-13 | 1958-06-14 | 1958-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-13 | 1962-06-14 | 1962-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-13 | 1966-06-14 | 1966-12-14 | $7700.00 | Window Closed / Lapsed |