US2847029A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control valve for tractor hydraulic systems
Assignee: Ford Motor Co
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Filing: 1953-12-28
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Granted: 1958-08-12
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Expires: 1973-12-28
Abstract
No abstract record available.
Inventors
- 👤 Edwin C Mcrac
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:03
CPC Classifications
F; F15; F15B; F15B11/00; F15B11/16; F15B13/00; F15B13/02; F15B13/04; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30505; F15B2211/32; F15B2211/321; F15B2211/324; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/50563; F15B2211/515; F15B2211/5156; F15B2211/555; F15B2211/57; F15B2211/70; F15B2211/705; F15B2211/7051; F15B2211/7052; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/8667; Y10T137/87169; Y10T137/87177; Y10T137/87185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |