Patent US2710020A successfully refreshed from Google Patents.
US2710020A
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Fluid control valve
Assignee: Manville Manufacturing Corp
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Filing: 1952-03-29
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Granted: 1955-06-07
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Expires: 1972-03-29
Abstract
No abstract record available.
Inventors
- 👤 Charles J Manville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 04:40
CPC Classifications
E; E03; E03C; E03C1/00; E03C1/02; E03C1/04; E03C1/046; Y; Y10; Y10T; Y10T137/00; Y10T137/3149; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/8593; Y10T137/87249; Y10T137/87917; Y10T137/88062
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US993806A
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US1993732A
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US2002630A
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US2173064A
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US2584436A
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US2494044A
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US2608412A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-06 | 1958-12-06 | 1959-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-06 | 1962-12-06 | 1963-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-06 | 1966-12-06 | 1967-06-07 | $7700.00 | Window Closed / Lapsed |