Granted Patent
Utility
US 4,753,043 · App. 06/941,297
Pivotally mounted insulated glass door assembly with self-contained structural support frame
Inventor:
Gerald J. Bockwinkel
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Dec 11, 1986
Inventor
Gerald J. Bockwinkel
Assignee (at issue)
Ardco, 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.