Granted Patent
Utility
US 4,749,842 · App. 07/046,546
Ring laser and method of making same
Inventors:
Thomas J. Kane, Leonard P. Pearson
Patented Case
View Patent ↗
Granted: Jun 7, 1988
Filed: May 6, 1987
Inventors
Thomas J. Kane
Leonard P. Pearson
Assignee (at issue)
Lightwave Electronics
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.