Granted Patent
Utility
US 6,073,892 · App. 08/661,609
Modular projector lift
Inventor:
Jay Dittmer
Patented Case
View Patent ↗
Granted: Jun 13, 2000
Filed: Jun 11, 1996
Inventor
Jay Dittmer
Assignee (at issue)
CHIEF MANUFACTURING, 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.