US3496509A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manually resettable safety lockout switch
Assignee: Electronics Corp of America
•
Filing: 1966-12-02
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Granted: 1970-02-17
•
Expires: 1986-12-02
Abstract
No abstract record available.
Inventors
- 👤 Arthur G B Metcalf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:27
CPC Classifications
H; H01; H01H; H01H61/00; H01H61/02; H01H37/00; H01H37/02; H01H37/64; H01H37/70; H01H73/00; H01H73/22; H01H73/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1719089A
Cited
US1996720A
Cited
US2235337A
Cited
US2824932A
Cited
US3087146A
Cited
US3239629A
Cited
FR1424520A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |