Granted Patent
Utility
US 6,607,645 · App. 09/583,274
Production of hollow ceramic membranes by electrophoretic deposition
Inventor:
Partha Sarkar
Patented Case
View Patent ↗
Granted: Aug 19, 2003
Filed: May 31, 2000
Inventor
Partha Sarkar
Assignee (at issue)
Alberta Research Council 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.