Granted Patent
Utility
US 4,347,876 · App. 06/169,343
Handling and/or treatment of particulate materials
Inventor:
John Morgan
Patented Case
View Patent ↗
Granted: Sep 7, 1982
Filed: Jul 16, 1980
Inventor
John Morgan
Assignee (at issue)
Richards Structural Steel Co. Limited
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.