Granted Patent
Utility
US 5,544,810 · App. 08/159,909
Precision-ratioed fluid-mixing device and system
Inventors:
Stephen R. Horvath, Jr., Robert D. Abrams, Thomas A. Helf
Patented Case
View Patent ↗
Granted: Aug 13, 1996
Filed: Nov 30, 1993
Inventors
Stephen R. Horvath, Jr.
Robert D. Abrams
Thomas A. Helf
Assignee (at issue)
S. C. JOHNSON & SON, 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.