Granted Patent
Utility
US 4,563,181 · App. 06/467,939
Fused flexible tip catheter
Inventors:
Bandula Wijayarathna, Ronald M. Hopkins
Patented Case
View Patent ↗
Granted: Jan 7, 1986
Filed: Feb 18, 1983
Inventors
Bandula Wijayarathna
Ronald M. Hopkins
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.