Granted Patent
Utility
US 6,620,148 · App. 09/676,028
Filter flush system and methods of use
Inventor:
Ross S. Tsugita
Patented Case
View Patent ↗
Granted: Sep 16, 2003
Filed: Sep 29, 2000
Inventor
Ross S. Tsugita
Assignee (at issue)
Scimed Life Systems, 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.