Granted Patent
Utility
US 6,406,656 · App. 09/551,409
Fabrication of photoconductor drum insert
Inventors:
Roger Nicholas Thompson, Edward Wayne Weidert
Patented Case
View Patent ↗
Granted: Jun 18, 2002
Filed: Apr 18, 2000
Inventors
Roger Nicholas Thompson
Edward Wayne Weidert
Assignee (at issue)
Lexmark International, 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.