Granted Patent
Utility
US 6,021,297 · App. 09/198,696
Flexible doctor blade having a radiused contact surface
Inventors:
Alan Stirling Campbell, Christina Allison Cullins, Kermit Arnold Meece, Peter Wallin
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Nov 24, 1998
Inventors
Alan Stirling Campbell
Christina Allison Cullins
Kermit Arnold Meece
Peter Wallin
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.