Granted Patent
Utility
US 4,440,267 · App. 06/314,637
Disc brake
Inventor:
Kamal El-Sheikh
Patented Case
View Patent ↗
Granted: Apr 3, 1984
Filed: Oct 26, 1981
Inventor
Kamal El-Sheikh
Assignee (at issue)
KELSEY-HAYES-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.