Granted Patent
Utility
US 4,466,462 · App. 06/546,080
Circuitous path flow restrictor
Inventor:
Hugh C. Morris
Patented Case
View Patent ↗
Granted: Aug 21, 1984
Filed: Oct 31, 1983
Inventor
Hugh C. Morris
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.