Granted Patent
Utility
US 6,172,689 · App. 08/965,989
Apparatus and method for varying print element spacing in a printing system
Inventors:
Stephen Kelly Cunnagin, Scott Michael Heydinger
Patented Case
View Patent ↗
Granted: Jan 9, 2001
Filed: Nov 7, 1997
Inventors
Stephen Kelly Cunnagin
Scott Michael Heydinger
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.