Granted Patent
Utility
US 5,115,891 · App. 07/628,464
Composite brake drum with improved locating means for reinforcement assembly
Inventors:
Donald A. Raitzer, Raymond J. Twisdom
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Dec 17, 1990
Inventors
Donald A. Raitzer
Raymond J. Twisdom
Assignee (at issue)
The Budd Company
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.