Granted Patent
Utility
US 5,753,602 · App. 08/574,052
Chlorine cleanser tabletting process and product
Inventors:
Hin Cheung Hung, Ronnie A. Carroll, Kenneth Ward
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Dec 18, 1995
Inventors
Hin Cheung Hung
Ronnie A. Carroll
Kenneth Ward
Assignee (at issue)
BLOCK DRUG COMPANY 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.