Granted Patent
Utility
US 6,476,813 · App. 09/452,322
Method and apparatus for preparing a perspective view of an approximately spherical surface portion
Inventor:
Paul E. Hansen
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Nov 30, 1999
Inventor
Paul E. Hansen
Assignee (at issue)
Silicon Graphics, 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.