Granted Patent
Utility
US 5,987,748 · App. 09/127,392
Method of making ink roller assembly
Inventor:
Ronald G. Calloway
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jul 31, 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.