Patent US2519134A successfully refreshed from Google Patents.
US2519134A
Expired / Lapsed
US
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Pressure control switch
Assignee: V RAY VAN WEY
•
Filing: 1946-12-06
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Granted: 1950-08-15
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Expires: 1966-12-06
Abstract
No abstract record available.
Inventors
- 👤 Paul V Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:01
CPC Classifications
F; F01; F01D; F01D11/00; F01D11/02; F01D11/04; F01D11/06; G; G05; G05D; G05D16/00; G05D16/20; G05D16/2006; G05D16/2013; G05D16/202; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7761
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE226128C
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US1713833A
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US902600A
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US1615582A
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US1638814A
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US2078479A
Cited
US2057889A
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US2320508A
Cited
US2336399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-14 | 1954-02-13 | 1954-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-14 | 1958-02-13 | 1958-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-14 | 1962-02-13 | 1962-08-15 | $7700.00 | Window Closed / Lapsed |