Granted Patent
Utility
US 4,280,608 · App. 06/022,902
Self-contained Belleville spring-type wet clutch
Inventors:
Edward Franklin Labuda, Ting M. Wang
Patented Case
View Patent ↗
Granted: Jul 28, 1981
Filed: Mar 22, 1979
Inventors
Edward Franklin Labuda
Ting M. Wang
Assignee (at issue)
BorgWarner Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.