Granted Patent
Utility
US 5,503,111 · App. 08/192,020
Animal dross absorbent and method
Inventor:
John Hughes
Patented Case
View Patent ↗
Granted: Apr 2, 1996
Filed: Feb 4, 1994
Inventor
John Hughes
Assignee (at issue)
American Colloid Company
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.