Granted Patent
Utility
US 5,114,350 · App. 07/320,474
Controlled-volume assay apparatus
Inventor:
Gary E. Hewett
Patented Case
View Patent ↗
Granted: May 19, 1992
Filed: Mar 8, 1989
Inventor
Gary E. Hewett
Assignee (at issue)
Cholestech Corporation
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.