Granted Patent
Utility
US 4,657,184 · App. 06/824,761
Fluid tip and air cap assembly
Inventor:
Richard Weinstein
Patented Case
View Patent ↗
Granted: Apr 14, 1987
Filed: Jan 31, 1986
Inventor
Richard Weinstein
Assignee (at issue)
Champion Spark Plug Company
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.