Granted Patent
Utility
US 5,129,365 · App. 07/552,823
Animal dross absorbent and method
Inventor:
John Hughes
Patented Case
View Patent ↗
Granted: Jul 14, 1992
Filed: Jul 16, 1990
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.