Granted Patent
Utility
US 4,297,723 · App. 06/107,686
Wide angle laser display system
Inventor:
Clyde M. Whitby
Patented Case
View Patent ↗
Granted: Oct 27, 1981
Filed: Jan 28, 1980
Inventor
Clyde M. Whitby
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.