Granted Patent
Utility
US 5,493,636 · App. 08/121,729
System and method for shading graphic images using an accessibility factor to simulate tarnish accumulation for realistic rendering
Inventor:
Gavin Stuart Peter Miller
Patented Case
View Patent ↗
Granted: Feb 20, 1996
Filed: Sep 15, 1993
Inventor
Gavin Stuart Peter Miller
Assignee (at issue)
Apple Computer 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.