US3391612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston sealing elements in hydraulic motors
Assignee: Individual
•
Filing: 1966-06-06
•
Granted: 1968-07-09
•
Expires: 1986-06-06
Abstract
No abstract record available.
Inventors
- 👤 Sneen Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:03
CPC Classifications
F; F16; F16J; F16J1/00; F16J1/005; F16J1/006; F16J1/008; F15; F15B; F15B15/00; F15B15/08; F15B15/12; F15B15/125; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49229; Y10T29/49249; Y10T29/4925; Y10T403/00; Y10T403/61
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1097563A
Cited
US1469267A
Cited
US1739644A
Cited
AU240631A
Cited
US1899846A
Cited
US3039340A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |