US2642086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Loading valve and method of controlling fluid flow
Assignee: Buckeye Iron and Brass Works
•
Filing: 1950-02-21
•
Granted: 1953-06-16
•
Expires: 1970-02-21
Abstract
No abstract record available.
Inventors
- 👤 Robert M Conklin
- 👤 Harold W Herring
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:15
CPC Classifications
F; F16; F16K; F16K1/00; F16K1/16; F16K1/18; F16K1/20; F16K1/2007; F16K1/2028; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86928; Y10T137/86936; Y10T137/86944; Y10T137/86976; Y10T137/87016; Y10T137/87917; Y10T137/87981; Y10T137/88022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US910326A
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US922145A
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US913121A
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US996577A
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US1004019A
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US1409528A
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US1521086A
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US1705487A
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US1850094A
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US1713102A
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GB357735A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-15 | 1956-12-15 | 1957-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-15 | 1960-12-15 | 1961-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-15 | 1964-12-15 | 1965-06-16 | $7700.00 | Window Closed / Lapsed |