Granted Patent
Utility
US 5,182,237 · App. 07/685,953
Borosilicate glass for electronic flash lamps
Inventor:
Peter Brix
Patented Case
View Patent ↗
Granted: Jan 26, 1993
Filed: Apr 17, 1991
Inventor
Peter Brix
Assignee (at issue)
Schott Glaswerke
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.