Granted Patent
Utility
US 5,976,172 · App. 08/887,191
Retractable temporary vena cava filter
Inventors:
Tjeerd Homsma, Alexander Christiaan Boudewijn
Patented Case
View Patent ↗
Granted: Nov 2, 1999
Filed: Jul 2, 1997
Inventors
Tjeerd Homsma
Alexander Christiaan Boudewijn
Assignee (at issue)
CORDIS CORPORATION
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.