Granted Patent
Utility
US 5,383,537 · App. 08/033,689
Brake drum having an extension ring with chill fins and cooling fins formed thereon
Inventor:
Jay D. White
Patented Case
View Patent ↗
Granted: Jan 24, 1995
Filed: Mar 16, 1993
Inventor
Jay D. White
Assignee (at issue)
Eaton Corporation
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.