US3558244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High pressure pump
Assignee: Maruyama Manufacturing Co Ltd
•
Filing: 1968-09-03
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Granted: 1971-01-26
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Expires: 1988-09-03
Abstract
Abstract A HIGH PRESSURE PUMP WITH A SELF-CENTERING PISTON LOOSE ON THE PISTON ROD CARRYING VALVE VALVING IN COOPERATION WITH THE PISTON.
Inventors
- 👤 Ryoji Uchiyama
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:39
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/16; F04B53/162; F04B53/10; F04B53/12; F04B53/122; F04B53/164
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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |