Granted Patent
Utility
US 6,539,862 · App. 09/875,699
Chambered doctor blade assembly
Inventors:
Thomas Bock, Robert Konrad
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Jun 6, 2001
Inventors
Thomas Bock
Robert Konrad
Assignee (at issue)
MAN Roland Druckmaschinen AG
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.