US2485915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve assembly
Assignee: Parker Appliance Co
•
Filing: 1944-04-08
•
Granted: 1949-10-25
•
Expires: 1964-04-08
Abstract
No abstract record available.
Inventors
- 👤 Arthur L Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:26
CPC Classifications
F; F16; F16K; F16K5/00; F16K5/04; F16K5/0414; F16K5/0457; F16K5/0464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US783953A
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DE520188C
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US1784381A
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FR676093A
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US1999496A
Cited
US2201895A
Cited
US2290349A
Cited
US2310583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-24 | 1953-04-25 | 1953-10-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-24 | 1957-04-25 | 1957-10-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-24 | 1961-04-25 | 1961-10-25 | $7700.00 | Window Closed / Lapsed |