Granted Patent
Utility
US 5,471,109 · App. 07/999,133
Method and apparatus for preventing reverse flow in air or gas cooled lamps
Inventors:
Jayavant P. Gore, Robert Sweetman
Patented Case
View Patent ↗
Granted: Nov 28, 1995
Filed: Dec 31, 1992
Inventors
Jayavant P. Gore
Robert Sweetman
Assignee (at issue)
Fusion Systems Corporation
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.