Granted Patent
Utility
US 5,421,981 · App. 08/147,411
Electrochemical sensor storage device
Inventors:
Matthew J. Leader, Kee Van Sin
Patented Case
View Patent ↗
Granted: Jun 6, 1995
Filed: Nov 5, 1993
Inventors
Matthew J. Leader
Kee Van Sin
Assignee (at issue)
PPG Industries, 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.