Granted Patent
Utility
US 4,854,078 · App. 07/306,689
Curved sliding door assembly and method of repair
Inventor:
George R. DePrima
Patented Case
View Patent ↗
Granted: Aug 8, 1989
Filed: Feb 6, 1989
Inventor
George R. DePrima
Assignee (at issue)
Morton Manufacturing Company
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.