Granted Patent
Utility
US 4,884,925 · App. 07/128,720
Apparatus and method for transfer and slurrying or dissolving hydratable dry bulk chemicals
Inventors:
Robert A. Kemp, William I. Nelson, Gary Foley
Patented Case
View Patent ↗
Granted: Dec 5, 1989
Filed: Dec 4, 1987
Inventors
Robert A. Kemp
William I. Nelson
Gary Foley
Assignee (at issue)
General Chemical Company
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.