Granted Patent
Utility
US 4,415,043 · App. 06/307,372
Toolbar with wings foldable substantially 180 degrees
Inventors:
Howard D. Hadler, James R. Kreftmeyer
Patented Case
View Patent ↗
Granted: Nov 15, 1983
Filed: Oct 1, 1981
Inventors
Howard D. Hadler
James R. Kreftmeyer
Assignee (at issue)
Chromalloy American Corp.
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.