US3443483A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pilot unloading hydraulic circuit
Assignee: International Motors LLC
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Filing: 1966-05-06
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Granted: 1969-05-13
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Expires: 1986-05-06
Abstract
No abstract record available.
Inventors
- 👤 Charles A L Ruhl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:18
CPC Classifications
F; F15; F15B; F15B11/00; F15B2211/00; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/31; F15B2211/3105; F15B2211/3116; F15B2211/315; F15B2211/3157; F15B2211/31576; F15B2211/32; F15B2211/321; F15B2211/322; F15B2211/323; F15B2211/40; F15B2211/45; Y; Y10; Y10T; Y10T137/00; Y10T137/8593; 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) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |