Granted Patent
Utility
US 6,425,909 · App. 09/434,585
Methods and devices for filtering fluid flow through a body structure
Inventors:
Martin Dieck, Brian B. Martin
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Nov 4, 1999
Inventors
Martin Dieck
Brian B. Martin
Assignee (at issue)
CONCENTRIC MEDICAL, 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.