Patent US2655167A successfully refreshed from Google Patents.
US2655167A
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Control valve
Assignee: Twin Disc Inc
•
Filing: 1949-09-20
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Granted: 1953-10-13
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Expires: 1969-09-20
Abstract
No abstract record available.
Inventors
- 👤 Henry J Dunkelow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:46
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; F15B13/06; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2617; Y10T137/8593; Y10T137/86493; Y10T137/86549; Y10T137/86574; Y10T137/8667; Y10T137/87056; Y10T137/87088
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US477706A
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US1138187A
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US1357294A
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US1870068A
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US1809938A
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US1902231A
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US2108312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-12 | 1957-04-13 | 1957-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-12 | 1961-04-13 | 1961-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-12 | 1965-04-13 | 1965-10-13 | $7700.00 | Window Closed / Lapsed |