US2935852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple speed reciprocating hydraulic motors
Assignee: Individual
•
Filing: 1957-04-16
•
Granted: 1960-05-10
•
Expires: 1977-04-16
Abstract
No abstract record available.
Inventors
- 👤 James C Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:32
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/02; F15B11/024; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/3056; F15B2211/30565; F15B2211/3058; F15B2211/315; F15B2211/3157; F15B2211/31576; F15B2211/32; F15B2211/321; F15B2211/324; F15B2211/70; F15B2211/71; F15B2211/7107; F15B2211/75
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-10 | 1963-11-09 | 1964-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-10 | 1967-11-09 | 1968-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-10 | 1971-11-09 | 1972-05-10 | $7700.00 | Window Closed / Lapsed |