Granted Patent
Utility
US 4,873,515 · App. 07/108,888
Computer graphics pixel processing system
Inventors:
Calvin M. Dickson, Kevin Rushforth
Patented Case
View Patent ↗
Granted: Oct 10, 1989
Filed: Oct 16, 1987
Inventors
Calvin M. Dickson
Kevin Rushforth
Assignee (at issue)
Evans & Sutherland Computer Corporation
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.