Granted Patent
Utility
US 6,528,945 · App. 09/776,253
Seal for ceramic metal halide discharge lamp
Inventors:
Timothy Kelly, Jagannathan Ravi
Patented Case
View Patent ↗
Granted: Mar 4, 2003
Filed: Feb 2, 2001
Inventors
Timothy Kelly
Jagannathan Ravi
Assignee (at issue)
Matsushita Research and Development Laboratories 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.