Granted Patent
Utility
US 5,218,265 · App. 07/839,695
Combined mask-frame with double spot welds
Inventor:
Rolf Reidinger
Patented Case
View Patent ↗
Granted: Jun 8, 1993
Filed: Feb 20, 1992
Inventor
Rolf Reidinger
Assignee (at issue)
Nokia (Deutschland) GmbH
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.