Granted Patent
Utility
US 6,309,072 · App. 09/450,611
Video projection system for projecting more than one picture
Inventor:
Christhard Deter
Patented Case
View Patent ↗
Granted: Oct 30, 2001
Filed: Nov 30, 1999
Inventor
Christhard Deter
Assignee (at issue)
LDT GmbH & Co. Laser-Display-Technologie KG
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.