Granted Patent
Utility
US 5,197,485 · App. 07/776,825
Method and apparatus for sampling aortic plaque
Inventor:
Ronald K. Grooters
Patented Case
View Patent ↗
Granted: Mar 30, 1993
Filed: Oct 15, 1991
Inventor
Ronald K. Grooters
Assignee (at issue)
Pilling Co.
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.