Granted Patent
Utility
US 4,745,289 · App. 06/849,294
Multiwavelength optical apparatus for laser processing alignment and observation
Inventor:
Kiyoto Mashima
Patented Case
View Patent ↗
Granted: May 17, 1988
Filed: Apr 8, 1986
Inventor
Kiyoto Mashima
Assignee (at issue)
Nippon Kogaku K.K.
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.