Granted Patent
Utility
US 4,752,135 · App. 06/936,669
Mixing apparatus and methods
Inventor:
Bernard A. Loomans
Patented Case
View Patent ↗
Granted: Jun 21, 1988
Filed: Dec 1, 1986
Inventor
Bernard A. Loomans
Assignee (at issue)
Baker Perkins 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.