Granted Patent
Utility
US 4,835,521 · App. 07/116,787
Fluid status detector
Inventors:
Raymond J. Andrejasich, Laurence S. Slocum, Bruce A. Clarkson
Patented Case
View Patent ↗
Granted: May 30, 1989
Filed: Nov 5, 1987
Inventors
Raymond J. Andrejasich
Laurence S. Slocum
Bruce A. Clarkson
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.