US2374593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solenoid operated valve
Assignee: Hydraulic Development Corp Inc
•
Filing: 1942-04-01
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Granted: 1945-04-24
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Expires: 1962-04-01
Abstract
No abstract record available.
Inventors
- 👤 Ernst Walter
- 👤 Cross David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:18
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/0603; F16K31/061; F16K31/0613; F16K11/00; F16K11/02; F16K11/06; F16K11/065; F16K11/07; F16K11/0708
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1948-04-23 | 1948-10-23 | 1949-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1952-04-23 | 1952-10-23 | 1953-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1956-04-23 | 1956-10-23 | 1957-04-24 | $7700.00 | Window Closed / Lapsed |