Granted Patent
Utility
US 6,579,261 · App. 09/608,609
Double lumen-type catheter
Inventor:
Akira Kawamura
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Jun 30, 2000
Inventor
Akira Kawamura
Assignee (at issue)
Adam Spence Corp.
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.