Granted Patent
Utility
US 4,714,545 · App. 06/841,922
Fluid proportioning pump system
Inventors:
H. Bryan Bente, Alan C. Herman, Joel Myerson, Benjamin G. Shaw, Andrew Stefanski
Patented Case
View Patent ↗
Granted: Dec 22, 1987
Filed: Mar 20, 1986
Inventors
H. Bryan Bente
Alan C. Herman
Joel Myerson
Benjamin G. Shaw
Andrew Stefanski
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.