Granted Patent
Utility
US 5,363,613 · App. 07/849,897
Rigid supporting structures
Inventor:
Richard W. Sevier
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Mar 12, 1992
Inventor
Richard W. Sevier
Assignee (at issue)
HENDRY MECHANICAL WORKS
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.