Granted Patent
Utility
US 5,642,927 · App. 08/567,174
LCD projector with retractable projection lens assembly
Inventors:
David K. Booth, Arlie R. Conner
Patented Case
View Patent ↗
Granted: Jul 1, 1997
Filed: Nov 22, 1995
Inventors
David K. Booth
Arlie R. Conner
Assignee (at issue)
Lightware, 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.