Granted Patent
Utility
US 4,898,522 · App. 07/179,028
System for cooling the rotary engine rotor
Inventor:
Thomas C. Edelmayer
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Apr 7, 1988
Inventor
Thomas C. Edelmayer
Assignee (at issue)
Teledyne Industries, Inc.
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.