Granted Patent
Utility
US 5,201,880 · App. 07/826,405
Mitral and tricuspid annuloplasty rings
Inventors:
John T. Wright, Donald P. Elliott, Francis C. Wells
Patented Case
View Patent ↗
Granted: Apr 13, 1993
Filed: Jan 27, 1992
Inventors
John T. Wright
Donald P. Elliott
Francis C. Wells
Assignee (at issue)
Pioneering Technologies, 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.