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US2816729A
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Shut-off valve of the butterfly type
Assignee: Garrett Corp
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Filing: 1953-02-26
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Granted: 1957-12-17
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Expires: 1973-02-26
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:33
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16K1/226; F16K1/228; F16K1/2285; Y; Y10; Y10T; Y10T137/00; Y10T137/598; Y10T137/599; Y10T137/6028; Y10T137/6031; Y10T137/6048; Y10T137/6052
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |