Granted Patent
Utility
US 5,444,725 · App. 08/316,614
Multifrequency laser
Inventor:
Martin Zirngibl
Patented Case
View Patent ↗
Granted: Aug 22, 1995
Filed: Sep 30, 1994
Inventor
Martin Zirngibl
Assignee (at issue)
AT & T IPM Corp.
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.