US2662550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve for controlling fluid flow by variation in electric current
Assignee: ANDREW H MEESTERS
•
Filing: 1949-03-07
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Granted: 1953-12-15
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Expires: 1969-03-07
Abstract
No abstract record available.
Inventors
- 👤 Louis C Meyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:52
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/025; F16K7/00; F16K7/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US478688A
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US552486A
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US1225887A
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US1173758A
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US1180282A
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US1441549A
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US1593855A
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US1697432A
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US1873138A
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GB397239A
Cited
US2373324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-14 | 1957-06-15 | 1957-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-14 | 1961-06-15 | 1961-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-14 | 1965-06-15 | 1965-12-15 | $7700.00 | Window Closed / Lapsed |