Granted Patent
Utility
US 4,891,921 · App. 07/031,536
Sliding door assembly with weather seal structure
Inventor:
Bernard C. Governale
Patented Case
View Patent ↗
Granted: Jan 9, 1990
Filed: Mar 30, 1987
Inventor
Bernard C. Governale
Assignee (at issue)
Peachtree Doors, 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.