Granted Patent
Utility
US 5,855,488 · App. 08/934,484
Protection lamp safety interconnect apparatus and method
Inventors:
Brian G. Heintz, Henry Frazier Pruett
Patented Case
View Patent ↗
Granted: Jan 5, 1999
Filed: Sep 19, 1997
Inventors
Brian G. Heintz
Henry Frazier Pruett
Assignee (at issue)
InFocus Systems, 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.