US2825241A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston and piston rod assemblies
Assignee: Oilgear Co
•
Filing: 1952-12-31
•
Granted: 1958-03-04
•
Expires: 1972-12-31
Abstract
No abstract record available.
Inventors
- 👤 Ferris Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:27
CPC Classifications
F; F01; F01B; F01B3/00; F01B3/0082; F01B3/0085; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18296; Y10T74/18336; Y10T74/21; Y10T74/2142; Y10T74/2152
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1204892A
Cited
US1817063A
Cited
US1811736A
Cited
US1829964A
Cited
US2182601A
Cited
US2365309A
Cited
US2383394A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-03 | 1961-09-02 | 1962-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-03 | 1965-09-02 | 1966-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-03 | 1969-09-02 | 1970-03-04 | $7700.00 | Window Closed / Lapsed |