Granted Patent
Utility
US 4,819,013 · App. 06/922,496
Ion generation compensation
Inventor:
Leo A. Beaudet
Patented Case
View Patent ↗
Granted: Apr 4, 1989
Filed: Oct 23, 1986
Inventor
Leo A. Beaudet
Assignee (at issue)
Dennison Manufacturing 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.