Granted Patent
Utility
US 4,493,426 · App. 06/310,768
Attachment jib for cranes
Inventor:
Russell L. Sterner
Patented Case
View Patent ↗
Granted: Jan 15, 1985
Filed: Oct 13, 1981
Inventor
Russell L. Sterner
Assignee (at issue)
Kidde Holding, 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.