Granted Patent
Utility
US 5,255,481 · App. 07/906,645
Spacer and spacer frame for an insulating glazing unit and method of making same
Inventors:
Stephen C. Misera, Thomas P. Kerr, William R. Siskos
Patented Case
View Patent ↗
Granted: Oct 26, 1993
Filed: Jun 30, 1992
Inventors
Stephen C. Misera
Thomas P. Kerr
William R. Siskos
Assignee (at issue)
PPG Industries, 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.