Granted Patent
Utility
US 4,462,441 · App. 06/464,824
Quartering wedge
Inventor:
George Hillinger
Patented Case
View Patent ↗
Granted: Jul 31, 1984
Filed: Feb 8, 1983
Inventor
George Hillinger
Assignee (at issue)
Alltrade 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.