Granted Patent
Utility
US 4,955,699 · App. 07/276,093
Precious metal doped crystals for hardening of the crystals
Inventors:
Narsingh B. Singh, Tom Henningsen, Robert Mazelsky, Richard H. Hopkins, Milton Gottlieb
Patented Case
View Patent ↗
Granted: Sep 11, 1990
Filed: Nov 23, 1988
Inventors
Narsingh B. Singh
Tom Henningsen
Robert Mazelsky
Richard H. Hopkins
Milton Gottlieb
Assignee (at issue)
Westinghouse Electric Company LLC
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.