Patent US4940093A successfully refreshed from Google Patents.
Patent US3474888A successfully refreshed from Google Patents.
US3474888A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubrication system for wet clutches
Assignee: Mack Trucks Inc
•
Filing: 1967-06-26
•
Granted: 1969-10-28
•
Expires: 1987-06-26
Abstract
No abstract record available.
Inventors
- 👤 Paul E Carlson
- 👤 Keith W Race
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:44
CPC Classifications
F; F16; F16D; F16D25/00; F16D25/12; F16D25/123; F16D13/00; F16D13/58; F16D13/74; F16D25/08; F16D25/082; F16D25/087
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |