Granted Patent
Utility
US 5,330,787 · App. 07/800,949
Polish composition forming hydrophilic layer and spray-away polishing process
Inventors:
David R. Berlin, Bonnie A. Rishel, Richard R. Wolstoncroft
Patented Case
View Patent ↗
Granted: Jul 19, 1994
Filed: Dec 2, 1991
Inventors
David R. Berlin
Bonnie A. Rishel
Richard R. Wolstoncroft
Assignee (at issue)
First Brands Corporation
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.