US2608353A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic valve
Assignee: —
•
Filing: —
•
Granted: 1952-08-26
•
Expires: 1969-08-26
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:57
CPC Classifications
F; F23; F23N; F23N1/00; F23N1/005; F02; F02M; F02M31/00; F02M31/02; F02M31/12; F02M31/125; F23N2235/00; F23N2235/12; F23N2235/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE249635C
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US1603005A
Cited
US1844071A
Cited
US1924250A
Cited
US2155358A
Cited
US2187045A
Cited
US2238401A
Cited
US2358999A
Cited
US2372307A
Cited
US2487323A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-26 | 1956-02-25 | 1956-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-26 | 1960-02-25 | 1960-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-26 | 1964-02-25 | 1964-08-26 | $7700.00 | Window Closed / Lapsed |