Granted Patent
Utility
US 4,793,397 · App. 07/026,787
Door and hinge construction for overhead doors
Inventor:
Paul L. Whiteman
Patented Case
View Patent ↗
Granted: Dec 27, 1988
Filed: Mar 17, 1987
Inventor
Paul L. Whiteman
Assignee (at issue)
Morgan Co., Ltd.
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.