Granted Patent
Utility
US 4,245,724 · App. 05/954,722
Manual release for a spring applied brake assembly
Inventor:
Henry E. Beck
Patented Case
View Patent ↗
Granted: Jan 20, 1981
Filed: Oct 25, 1978
Inventor
Henry E. Beck
Assignee (at issue)
Caterpillar Tractor Co.
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.