US2474826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick dumping valve
Assignee: Individual
•
Filing: 1944-06-07
•
Granted: 1949-07-05
•
Expires: 1964-06-07
Abstract
No abstract record available.
Inventors
- 👤 John H Cantlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:11
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/04; F16K13/06; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1647; Y10T137/1692; Y10T137/1699; Y10T137/1714; Y10T137/1759; Y10T137/1767
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US824934A
Cited
DE435219C
Cited
US1933694A
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US1984510A
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US1882700A
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US1951897A
Cited
US1914250A
Cited
US1954285A
Cited
US1974254A
Cited
US2047049A
Cited
US2095828A
Cited
US2262925A
Cited
US2301365A
Cited
US2304417A
Cited
US2276830A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |