US2826657A
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US
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Assignee: MASON ELECTRIC CORP
•
Filing: 1954-04-12
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Granted: 1958-03-11
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Expires: 1974-04-12
Abstract
No abstract record available.
Inventors
- 👤 Howard F Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 20:27
CPC Classifications
H; H01; H01H; H01H5/00; H01H5/04; H01H5/18; H01H13/00; H01H13/02; H01H13/26; H01H13/36; H01H25/00; H01H25/04; H01H25/041; G; G05; G05G; G05G9/00; G05G9/02; G05G9/04; G05G9/047; G05G2009/04703; G05G2009/0474; G05G2009/04744; H01H2025/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1287491A
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DE377832C
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US1818801A
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US2085557A
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US2520874A
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US2418965A
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GB569965A
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US2496135A
Cited
US2616996A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |