Granted Patent
Utility
US 6,428,857 · App. 09/788,734
Method for purging stagnant coating solution
Inventors:
Eugene A. Swain, Steven J. Grammatica, Christopher R. Fridd, Kathryn T. Lalone
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Feb 20, 2001
Inventors
Eugene A. Swain
Steven J. Grammatica
Christopher R. Fridd
Kathryn T. Lalone
Assignee (at issue)
Xerox 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.