Patent US2496518A successfully refreshed from Google Patents.
US2496518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic shutoff valve
Assignee: Individual
•
Filing: 1944-09-01
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Granted: 1950-02-07
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Expires: 1964-09-01
Abstract
No abstract record available.
Inventors
- 👤 Arthur V B Candler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 14:22
CPC Classifications
F; F16; F16K; F16K17/00; F16K17/42; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3003; Y10T137/3009; Y10T137/3012; Y10T137/3021; Y10T137/3028; Y10T137/3034; Y10T137/7287; Y10T137/7313; Y10T137/7323; Y10T137/7326
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US674004A
Cited
US803355A
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US975153A
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US1383273A
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US1542036A
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US2103057A
Cited
US2210751A
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US2252164A
Cited
US2251357A
Cited
US2306621A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |