Granted Patent
Utility
US 5,656,503 · App. 08/305,967
Test device for detecting analytes in biological samples
Inventors:
Keith May, Michael Evans Prior, Ian Richards
Patented Case
View Patent ↗
Granted: Aug 12, 1997
Filed: Sep 15, 1994
Inventors
Keith May
Michael Evans Prior
Ian Richards
Assignee (at issue)
Unilever Patent Holdings B.V.
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.