Granted Patent
Utility
US 4,023,623 · App. 05/652,490
Cultural implement with foldable tool supporting frame
Inventor:
Charles W. Anderson
Patented Case
View Patent ↗
Granted: May 17, 1977
Filed: Jan 26, 1976
Inventor
Charles W. Anderson
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.