US3040142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Arrow Hart and Hegeman Electric Co
•
Filing: 1959-10-22
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Granted: 1962-06-19
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Expires: 1979-10-22
Abstract
No abstract record available.
Inventors
- 👤 Walter L Dietrich
- 👤 Jr Paul T Galt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:38
CPC Classifications
H; H01; H01H; H01H25/00; H01H25/06; H01H13/00; H01H13/02; H01H13/023; H01H1/00; H01H1/12; H01H1/14; H01H1/20; H01H1/2016; H01H19/00; H01H19/54; H01H19/60; H01H19/63
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2734953A
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US1004005A
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US2087895A
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US2654006A
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US2659838A
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US2718636A
Cited
US2795669A
Cited
US2710955A
Cited
US2723389A
Cited
US2902646A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-18 | 1965-12-18 | 1966-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-18 | 1969-12-18 | 1970-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-18 | 1973-12-18 | 1974-06-19 | $7700.00 | Window Closed / Lapsed |