Granted Patent
Utility
US 4,845,965 · App. 06/945,908
Method and apparatus for dispensing solutions
Inventors:
James L. Copeland, Daniel F. Brady
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Dec 23, 1986
Inventors
James L. Copeland
Daniel F. Brady
Assignee (at issue)
ECOLAB 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.