Granted Patent
Utility
US 4,374,551 · App. 06/201,941
Mechanical actuating device for a spot-type disc brake
Inventors:
Alfred Birkenbach, Helmut Franke
Patented Case
View Patent ↗
Granted: Feb 22, 1983
Filed: Oct 29, 1980
Inventors
Alfred Birkenbach
Helmut Franke
Assignee (at issue)
ITT Industries
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.