Patent US3052777A successfully refreshed from Google Patents.
US3052777A
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US
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Piston type pressure switch having novel pressure sealing means
Assignee: Individual
•
Filing: 1959-10-02
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Granted: 1962-09-04
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Expires: 1979-10-02
Abstract
No abstract record available.
Inventors
- 👤 Jr Daniel T Meisenheimer
- 👤 Louis W Syarto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:28
CPC Classifications
H; H01; H01H; H01H35/00; H01H35/24; H01H35/34; H01H35/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US874652A
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US1938327A
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US2444181A
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US2494598A
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US2759061A
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US2782272A
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US2884291A
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US2902557A
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US2914369A
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US2903310A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |