Granted Patent
Utility
US 4,808,236 · App. 07/114,766
Unitary dishwashing product comprising detergent block in container and use thereof
Inventor:
Clyde Davis
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Oct 30, 1987
Inventor
Clyde Davis
Assignee (at issue)
DIVERSEY, 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.