Granted Patent
Utility
US 4,823,427 · App. 06/848,431
Elastic dust mop head cover
Inventors:
Lesley L. Gibbs, Charles John Morell
Patented Case
View Patent ↗
Granted: Apr 25, 1989
Filed: Apr 4, 1986
Inventors
Lesley L. Gibbs
Charles John Morell
Assignee (at issue)
Kimberly-Clark 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.