US2831081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switch
Assignee: MASON ELECTRIC CORP
•
Filing: 1955-08-08
•
Granted: 1958-04-15
•
Expires: 1975-08-08
Abstract
No abstract record available.
Inventors
- 👤 Howard F Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 01:25
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/16; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18856; Y10T74/18864; Y10T74/18872; Y10T74/18888; Y10T74/18896
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB107336A
Cited
US1667965A
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US1812410A
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US2015399A
Cited
US2090544A
Cited
US2334562A
Cited
GB571395A
Cited
US2448841A
Cited
US2521468A
Cited
US2565863A
Cited
US2684843A
Cited
US2668204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |