Granted Patent
Utility
US 6,085,376 · App. 09/131,025
Pipe cleaning apparatus
Inventors:
Michael P. Antal, Brian D. Antal
Patented Case
View Patent ↗
Granted: Jul 11, 2000
Filed: Aug 7, 1998
Inventors
Michael P. Antal
Brian D. Antal
Assignee (at issue)
ITC Inc.
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.