Granted Patent
Utility
US 4,863,781 · App. 07/243,221
Melt transfer web
Inventor:
Frank J. Kronzer
Patented Case
View Patent ↗
Granted: Sep 5, 1989
Filed: Sep 2, 1988
Inventor
Frank J. Kronzer
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.