Granted Patent
Utility
US 5,659,638 · App. 08/468,912
Method and system for converting bitmap data into page definition language commands
Inventor:
Michael Bengtson
Patented Case
View Patent ↗
Granted: Aug 19, 1997
Filed: Jun 6, 1995
Inventor
Michael Bengtson
Assignee (at issue)
R.R. DONNELLEY & SONS COMPANY
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.