Patent US2793619A successfully refreshed from Google Patents.
US2793619A
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US
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Single-stroke pressure operated cut-off valve and system for operation therewith
Assignee: Ross Operating Valve Co
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Filing: 1953-12-09
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Granted: 1957-05-28
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Expires: 1973-12-09
Abstract
No abstract record available.
Inventors
- 👤 Tirro Domenic A Di
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:34
CPC Classifications
B; B30; B30B; B30B15/00; B30B15/14; B30B15/142; F; F16; F16K; F16K11/00; F16K11/02; F16K11/022; F16K11/04; F16K11/044; Y; Y10; Y10T; Y10T137/00; Y10T137/1189; Y10T137/1298; Y10T137/1353; Y10T137/7722; Y10T137/7781
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1797297A
Cited
US2675677A
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US1448531A
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US2103962A
Cited
FR982567A
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US2423482A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-27 | 1960-11-26 | 1961-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-27 | 1964-11-26 | 1965-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-27 | 1968-11-26 | 1969-05-28 | $7700.00 | Window Closed / Lapsed |