Granted Patent
Utility
US 4,330,078 · App. 06/223,601
Abbreviated height partition
Inventor:
Earl J. Graser
Patented Case
View Patent ↗
Granted: May 18, 1982
Filed: Jan 9, 1981
Inventor
Earl J. Graser
Assignee (at issue)
Manville Service Corporation
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.