Granted Patent
Utility
US 5,222,896 · App. 07/742,895
Polyhedral approximation of a spherical body and two-dimensional projections therefrom
Inventor:
Thomas E. Smith
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Aug 8, 1991
Inventor
Thomas E. Smith
Assignee (at issue)
British Technology Group USA 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.