Granted Patent
Utility
US 4,784,170 · App. 07/055,005
Fuel injector cleaner kit
Inventors:
Patrick Romanelli, Robert J. Romanelli
Patented Case
View Patent ↗
Granted: Nov 15, 1988
Filed: May 28, 1987
Inventors
Patrick Romanelli
Robert J. Romanelli
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.