Granted Patent
Utility
US 5,625,638 · App. 08/327,886
Sealed crystalline windows for hollow laser fibers
Inventor:
David Trost
Patented Case
View Patent ↗
Granted: Apr 29, 1997
Filed: Oct 24, 1994
Inventor
David Trost
Assignee (at issue)
Coherent, 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.