Granted Patent
Utility
US 4,898,591 · App. 07/229,991
Nylon-PEBA copolymer catheter
Inventors:
Yue-Teh Jang, Vern Liebmann, Glenda S. Villman, Surendra A. Amin
Patented Case
View Patent ↗
Granted: Feb 6, 1990
Filed: Aug 9, 1988
Inventors
Yue-Teh Jang
Vern Liebmann
Glenda S. Villman
Surendra A. Amin
Assignee (at issue)
MALLINCKRODT LLC
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.