US2779838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absolute pressure switch
Assignee: United Electric Controls Co
•
Filing: 1951-11-27
•
Granted: 1957-01-29
•
Expires: 1971-11-27
Abstract
No abstract record available.
Inventors
- 👤 Arthur W Reis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:46
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/32; H01H35/26; H01H35/2607; H01H35/2628
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1920764A
Cited
US1948339A
Cited
US2033417A
Cited
US2094319A
Cited
US2162308A
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US2177480A
Cited
US2302923A
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US2549690A
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US2366897A
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US2411577A
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US2395007A
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US2432312A
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US2532448A
Cited
US2554659A
Cited
US2603728A
Cited
US2562385A
Cited
US2643741A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |