Granted Patent
Utility
US 5,184,751 · App. 07/905,775
Drum pump adapter
Inventor:
Dennis G. Middleton
Patented Case
View Patent ↗
Granted: Feb 9, 1993
Filed: Jun 29, 1992
Inventor
Dennis G. Middleton
Assignee (at issue)
New Pig Corporation
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.