Granted Patent
Utility
US 4,382,613 · App. 06/219,265
Deflectable support for protective frame
Inventor:
Robert Haupt
Patented Case
View Patent ↗
Granted: May 10, 1983
Filed: Dec 22, 1980
Inventor
Robert Haupt
Assignee (at issue)
Allis-Chalmers 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.