Granted Patent
Utility
US 4,291,380 · App. 06/038,617
Resolvability test and projection size clipping for polygon face display
Inventor:
Michel A. Rohner
Patented Case
View Patent ↗
Granted: Sep 22, 1981
Filed: May 14, 1979
Inventor
Michel A. Rohner
Assignee (at issue)
The Singer Company Limited
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.