Patent EP0316244A1 successfully refreshed from Google Patents.
US2569800A
Expired / Lapsed
US
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Electrically modulated valve
Assignee: THERMAL LIQUIDS Inc
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Filing: 1949-04-22
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Granted: 1951-10-02
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Expires: 1969-04-22
Abstract
No abstract record available.
Inventors
- 👤 John B Cataldo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:16
CPC Classifications
G; G01; G01K; G01K7/00; G01K7/36; G01K7/38
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190902740A
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US1626817A
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FR770767A
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US2013424A
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US2226845A
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US2350329A
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US2320881A
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US2310562A
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US2353740A
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US2460773A
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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) | 1954-10-01 | 1955-04-02 | 1955-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-01 | 1959-04-02 | 1959-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-01 | 1963-04-02 | 1963-10-02 | $7700.00 | Window Closed / Lapsed |