Granted Patent
Utility
US 5,953,992 · App. 09/185,564
Method of making ink roller assembly
Inventor:
Ronald G. Calloway
Patented Case
View Patent ↗
Granted: Sep 21, 1999
Filed: Nov 4, 1998
Inventor
Ronald G. Calloway
Assignee (at issue)
Monarch Marking Systems, 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.