Patent US3391767A successfully refreshed from Google Patents.
US3391767A
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Hydraulic pressure control system for clutches
Assignee: International Motors LLC
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Filing: 1966-01-06
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Granted: 1968-07-09
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Expires: 1986-01-06
Abstract
No abstract record available.
Inventors
- 👤 Robin J W C Stow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:21
CPC Classifications
F; F16; F16H; F16H57/00; F16H57/04; F16H57/0434; F15; F15B; F15B11/00; F16D; F16D48/00; F16D48/02; F16D48/0206; F16H61/00; F16H61/02; F16H61/0262; F16H63/00; F16H63/02; F16H63/30; F16H63/3023; F16H63/3026; F15B2211/00; F15B2211/20; F15B2211/205; F15B2211/2053; F15B2211/20538; F15B2211/30; F15B2211/305; F15B2211/30525; F15B2211/315; F15B2211/31523; F15B2211/31541; F15B2211/50; F15B2211/505; F15B2211/50509; F15B2211/50518; F15B2211/515; F15B2211/5157; F15B2211/55; F15B2211/555; F16D2048/0227; F16D2048/0233; F16D2048/0236; F16D2048/0242; F16D2048/0257; F16D2048/0269; F16D2048/0287; F16D2048/029; F16H2708/00; F16H2708/02; F16H2708/06; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19219; Y10T74/19377; Y10T74/19414; Y10T74/19419; Y10T74/19423; Y10T74/19428; Y10T74/19433
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) | 1971-07-09 | 1972-01-08 | 1972-07-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-09 | 1976-01-08 | 1976-07-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-09 | 1980-01-08 | 1980-07-09 | $7700.00 | Window Closed / Lapsed |