Granted Patent
Utility
US 4,666,621 · App. 06/847,352
Pre-moistened, streak-free, lint-free hard surface wiping article
Inventors:
William A. Clark, David Pregozen
Patented Case
View Patent ↗
Granted: May 19, 1987
Filed: Apr 2, 1986
Inventors
William A. Clark
David Pregozen
Assignee (at issue)
Sterling Drug, 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.