Granted Patent
Utility
US 4,630,972 · App. 06/666,292
Impulse injector apparatus
Inventor:
Frank R. Kinnan
Patented Case
View Patent ↗
Granted: Dec 23, 1986
Filed: Oct 29, 1984
Inventor
Frank R. Kinnan
Assignee (at issue)
Utilitech, Incorporated
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.