Granted Patent
Utility
US 6,551,304 · App. 09/724,239
Magnetic retrieval device and method of use
Inventors:
Mark J. Whalen, Lloyd K. Willard
Patented Case
View Patent ↗
Granted: Apr 22, 2003
Filed: Nov 28, 2000
Inventors
Mark J. Whalen
Lloyd K. Willard
Assignee (at issue)
AbbeyMoor 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.