Granted Patent
Utility
US 6,039,721 · App. 08/984,576
Method and catheter system for delivering medication with an everting balloon catheter
Inventors:
Kirk Johnson, Merril Knudtson
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Dec 3, 1997
Inventors
Kirk Johnson
Merril Knudtson
Assignee (at issue)
CORDIS CORPORATION
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.