Granted Patent
Utility
US 4,842,932 · App. 07/165,645
Fiber-containing yarn possessing antimicrobial activity
Inventor:
Wendel L. Burton
Patented Case
View Patent ↗
Granted: Jun 27, 1989
Filed: Mar 8, 1988
Inventor
Wendel L. Burton
Assignee (at issue)
BASF SE
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.