Granted Patent
Utility
US 5,083,643 · App. 07/587,735
Noise abating brake shoe
Inventors:
Alan R. Hummel, David L. Swadley
Patented Case
View Patent ↗
Granted: Jan 28, 1992
Filed: Sep 25, 1990
Inventors
Alan R. Hummel
David L. Swadley
Assignee (at issue)
Abex 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.