Patent US2665704A successfully refreshed from Google Patents.
US2665704A
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US
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Constant speed flow control valve
Assignee: Borg Warner Corp
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Filing: 1948-03-26
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Granted: 1954-01-12
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Expires: 1968-03-26
Abstract
No abstract record available.
Inventors
- 👤 John A Kanuch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:33
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/04; F15B13/0416; F15B13/0417; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2562; Y10T137/2574; Y10T137/2579; Y10T137/2594; Y10T137/2605; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788; Y10T137/8593; Y10T137/87265; Y10T137/87338; Y10T137/87378; Y10T137/87539; Y10T137/87547
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1804751A
Cited
US1964616A
Cited
US2057088A
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US2102865A
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US2354634A
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US2388820A
Cited
US2440961A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-11 | 1957-07-13 | 1958-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-11 | 1961-07-13 | 1962-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-11 | 1965-07-13 | 1966-01-12 | $7700.00 | Window Closed / Lapsed |