Granted Patent
Utility
US 5,642,142 · App. 08/522,803
Variable halftone operation inkjet printheads
Inventor:
Jaime H. Bohorquez
Patented Case
View Patent ↗
Granted: Jun 24, 1997
Filed: Aug 31, 1995
Inventor
Jaime H. Bohorquez
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.