Granted Patent
Utility
US 5,966,768 · App. 09/047,527
Adjustable tube-cleaner device
Inventor:
Robert B. Hahn
Patented Case
View Patent ↗
Granted: Oct 19, 1999
Filed: Mar 25, 1998
Inventor
Robert B. Hahn
Assignee (at issue)
Atlantic 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.