US3055386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Level control valve
Assignee: Parker Hannifin Corp
•
Filing: 1959-10-20
•
Granted: 1962-09-25
•
Expires: 1979-10-20
Abstract
No abstract record available.
Inventors
- 👤 Alexander P Moore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:21
CPC Classifications
F; F16; F16K; F16K21/00; F16K21/04; F16K21/18; B; B64; B64D; B64D39/00; Y; Y10; Y10T; Y10T137/00; Y10T137/7287; Y10T137/7339
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1930033A
Cited
US2471328A
Cited
US2620818A
Cited
US2803263A
Cited
US2712828A
Cited
US2871873A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |