US3472261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Directional control valve
Assignee: RACINE HYDRAULICS Inc
•
Filing: 1966-01-05
•
Granted: 1969-10-14
•
Expires: 1986-01-05
Abstract
No abstract record available.
Inventors
- 👤 Edward O Brannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:05
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/01; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2544; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2617; Y10T137/7722; Y10T137/7758; Y10T137/7762; Y10T137/7769; Y10T137/777; Y10T137/7771
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2286880A
Cited
SU116799A1
Cited
US3129645A
Cited
US3272085A
Cited
US3299903A
Cited
US3266381A
Cited
US3273467A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-13 | 1973-04-14 | 1973-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-13 | 1977-04-14 | 1977-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-13 | 1981-04-14 | 1981-10-14 | $7700.00 | Window Closed / Lapsed |