Granted Patent
Utility
US 5,484,245 · App. 08/189,406
Motor powered intermediate container and method of use
Inventor:
William Damm Zopf
Patented Case
View Patent ↗
Granted: Jan 16, 1996
Filed: Jan 31, 1994
Inventor
William Damm Zopf
Assignee (at issue)
The Heil 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.