Granted Patent
Utility
US 4,753,058 · App. 06/905,951
Elevated floor panel and method of manufacturing same
Inventor:
George F. Ray, III
Patented Case
View Patent ↗
Granted: Jun 28, 1988
Filed: Sep 11, 1986
Inventor
George F. Ray, III
Assignee (at issue)
Donn Incorporated
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.