US2918908A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure biased actuator rod for hydraulic piston and cylinder assemblies
Assignee: PETCH Manufacturing Co
•
Filing: 1955-08-03
•
Granted: 1959-12-29
•
Expires: 1975-08-03
Abstract
No abstract record available.
Inventors
- 👤 Ray H Herner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:01
CPC Classifications
F; F15; F15B; F15B15/00; F15B15/20; F15B15/28; F15B15/2807
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US899795A
Cited
US2008013A
Cited
US2113161A
Cited
CH265267A
Cited
GB610945A
Cited
US2537680A
Cited
US2755966A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |