Granted Patent
Utility
US 4,831,360 · App. 07/116,786
Fluid status detector
Inventors:
Bruce A. Clarkson, Steven A. MacIntyre
Patented Case
View Patent ↗
Granted: May 16, 1989
Filed: Nov 5, 1987
Inventors
Bruce A. Clarkson
Steven A. MacIntyre
Assignee (at issue)
Emhart 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.