Granted Patent
Utility
US 4,734,375 · App. 06/493,969
Ion specific test method
Inventor:
Steven C. Charlton
Patented Case
View Patent ↗
Granted: Mar 29, 1988
Filed: May 12, 1983
Inventor
Steven C. Charlton
Assignee (at issue)
Miles Laboratories, Inc.
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.