Granted Patent
Utility
US 4,720,657 · App. 06/809,085
Implosion protection for shallow image display device having front screen with rearwardly projecting walls
Inventor:
Kurt M. Tischer
Patented Case
View Patent ↗
Granted: Jan 19, 1988
Filed: Dec 13, 1985
Inventor
Kurt M. Tischer
Assignee (at issue)
Standard Elektrik Lorenz AG
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.