US2738807A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid control valve
Assignee: Individual
•
Filing: 1949-07-20
•
Granted: 1956-03-20
•
Expires: 1969-07-20
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Addison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:31
CPC Classifications
F; F16; F16K; F16K11/00; F16K11/02; F16K11/06; F16K11/072; Y; Y10; Y10S; Y10S239/00; Y10S239/15; Y10T; Y10T137/00; Y10T137/8376; Y10T137/8593; Y10T137/86389; Y10T137/86445; Y10T137/86911
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1387101A
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US998543A
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US1272384A
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US1842382A
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DE660750C
Cited
US2235287A
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US2315223A
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US2371498A
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US2368832A
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US2428410A
Cited
US2582333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-20 | 1959-09-19 | 1960-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-20 | 1963-09-19 | 1964-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-20 | 1967-09-19 | 1968-03-20 | $7700.00 | Window Closed / Lapsed |