Patent US3010692A successfully refreshed from Google Patents.
US3010692A
Expired / Lapsed
US
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Expansible conical plug valve
Assignee: Hospitality Homes
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Filing: 1959-11-20
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Granted: 1961-11-28
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Expires: 1979-11-20
Abstract
No abstract record available.
Inventors
- 👤 Arthur P Jentoft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:06
CPC Classifications
F; F16; F16K; F16K7/00; F16K7/10; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F13/00; F24F13/02; F24F13/06; F24F13/062; Y; Y10; Y10T; Y10T137/00; Y10T137/794; Y10T137/8085
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) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |