Granted Patent
Utility
US 5,651,931 · App. 08/581,301
Method of making a biocompatible filter
Inventors:
Michael L. Bailey, Rajkumar Raman, Randall M. German
Patented Case
View Patent ↗
Granted: Jul 29, 1997
Filed: Dec 28, 1995
Inventors
Michael L. Bailey
Rajkumar Raman
Randall M. German
Assignee (at issue)
Upchurch Scientific, 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.