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US3050598A
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Overload switching device
Assignee: 3M Co
•
Filing: 1959-09-25
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Granted: 1962-08-21
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Expires: 1979-09-25
Abstract
No abstract record available.
Inventors
- 👤 John J Fennessy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:22
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/006; H01H35/06; H01H35/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1949119A
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US1938720A
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US1883164A
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US1986802A
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US2144769A
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US2667050A
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US2969132A
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US2881891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-20 | 1966-02-19 | 1966-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-20 | 1970-02-19 | 1970-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-20 | 1974-02-19 | 1974-08-21 | $7700.00 | Window Closed / Lapsed |