Granted Patent
Utility
US 6,264,809 · App. 09/183,547
Enhanced membrane electrode devices useful for electrodeposition coating
Inventor:
Cheng H. Lee
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Oct 30, 1998
Inventor
Cheng H. Lee
Assignee (at issue)
PTI Advanced Filtration, 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.