Granted Patent
Utility
US 4,399,861 · App. 06/219,032
Casting gap control system
Inventor:
Charles Carlson
Patented Case
View Patent ↗
Granted: Aug 23, 1983
Filed: Dec 22, 1980
Inventor
Charles Carlson
Assignee (at issue)
ALLIED CONSULTING, 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.