Granted Patent
Utility
US 5,133,383 · App. 07/761,526
Axicage multistage choke
Inventor:
Jeffrey Allen King
Patented Case
View Patent ↗
Granted: Jul 28, 1992
Filed: Sep 18, 1991
Inventor
Jeffrey Allen King
Assignee (at issue)
Cooper Industries Holdings
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.