Granted Patent
Utility
US 4,886,575 · App. 06/785,420
Detackification of adhesive materials contained in secondary fiber with polyvinyl alcohol
Inventor:
Robert D. Moreland
Patented Case
View Patent ↗
Granted: Dec 12, 1989
Filed: Oct 8, 1985
Inventor
Robert D. Moreland
Assignee (at issue)
Betz Laboratories, 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.