Granted Patent
Utility
US 5,129,413 · App. 07/618,249
Self washing storage tank
Inventors:
Hugh E. Puder, Charles S. Hanskat
Patented Case
View Patent ↗
Granted: Jul 14, 1992
Filed: Nov 28, 1990
Inventors
Hugh E. Puder
Charles S. Hanskat
Assignee (at issue)
CROM, LLC
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.