Granted Patent
Utility
US 5,265,140 · App. 07/905,784
Inverted vane mixing grid
Inventor:
Patrick A. Perrotti
Patented Case
View Patent ↗
Granted: Nov 23, 1993
Filed: Jun 29, 1992
Inventor
Patrick A. Perrotti
Assignee (at issue)
Combustion Engineering, 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.