Granted Patent
Utility
US 5,343,699 · App. 07/990,071
Method and apparatus for improved operation of internal combustion engines
Inventor:
Roy Edward McAlister
Patented Case
View Patent ↗
Granted: Sep 6, 1994
Filed: Dec 14, 1992
Inventor
Roy Edward McAlister
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.