US2479398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston and cylinder assembly embodying a solenoid controlled valve
Assignee: Individual
•
Filing: 1945-10-27
•
Granted: 1949-08-16
•
Expires: 1965-10-27
Abstract
No abstract record available.
Inventors
- 👤 John B Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:34
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1857053A
Cited
US1932649A
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US2115845A
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US2145384A
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US2340817A
Cited
US2301576A
Cited
US2343265A
Cited
US2403020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-15 | 1953-02-14 | 1953-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-15 | 1957-02-14 | 1957-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-15 | 1961-02-14 | 1961-08-16 | $7700.00 | Window Closed / Lapsed |