Granted Patent
Utility
US 5,311,532 · App. 08/051,885
Calcium-yttrium silicate oxyapatite lasers
Inventors:
Roger F. Belt, Mark Lewis Randles
Patented Case
View Patent ↗
Granted: May 10, 1994
Filed: Apr 26, 1993
Inventors
Roger F. Belt
Mark Lewis Randles
Assignee (at issue)
Litton 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.