Granted Patent
Utility
US 4,558,470 · App. 06/436,654
Shock attenuation system
Inventors:
Hal D. Mitchell, Richard Glover, Donald R. Walker, Isadore Rosenberg
Patented Case
View Patent ↗
Granted: Dec 17, 1985
Filed: Oct 26, 1982
Inventors
Hal D. Mitchell
Richard Glover
Donald R. Walker
Isadore Rosenberg
Assignee (at issue)
Figgie Inernational Inc.
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.