Granted Patent
Utility
US 4,596,618 · App. 06/580,984
Method of making a fitted sheet with elastic restraints
Inventor:
Philip Hammond
Patented Case
View Patent ↗
Granted: Jun 24, 1986
Filed: Feb 16, 1984
Inventor
Philip Hammond
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.