US3009999A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool handle switch with overload protection
Assignee: Arrow Hart and Hegeman Electric Co
•
Filing: 1958-06-24
•
Granted: 1961-11-21
•
Expires: 1978-06-24
Abstract
No abstract record available.
Inventors
- 👤 David W Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:18
CPC Classifications
B; B23; B23B; B23B45/00; B23B45/02; H; H01; H01H; H01H13/00; H01H13/02; H01H13/04; H01H13/08; H01H73/00; H01H73/22; H01H73/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2261366A
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US2534938A
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US2659788A
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US2701829A
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US2633515A
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US2774844A
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US2745922A
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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) | 1964-11-20 | 1965-05-22 | 1965-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-20 | 1969-05-22 | 1969-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-20 | 1973-05-22 | 1973-11-21 | $7700.00 | Window Closed / Lapsed |