Granted Patent
Utility
US 4,338,828 · App. 06/152,067
Transmission shift control guide and detent apparatus
Inventor:
Harold W. Ruhlman
Patented Case
View Patent ↗
Granted: Jul 13, 1982
Filed: May 21, 1980
Inventor
Harold W. Ruhlman
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.