US3006598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Butterfly valve
Assignee: SP Kinney Engineers Inc
•
Filing: 1958-07-08
•
Granted: 1961-10-31
•
Expires: 1978-07-08
Abstract
No abstract record available.
Inventors
- 👤 Hugh B Carr
- 👤 Anthony F Yuska
- 👤 Selwyne P Kinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:59
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/22; F16K1/226; F16K1/2268
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1546594A
Cited
GB245650A
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US1858587A
Cited
US1990309A
Cited
US2053668A
Cited
US2054369A
Cited
DE670327C
Cited
FR994490A
Cited
US2912218A
Cited
FR1130544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-30 | 1965-05-01 | 1965-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-30 | 1969-05-01 | 1969-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-30 | 1973-05-01 | 1973-10-31 | $7700.00 | Window Closed / Lapsed |