Granted Patent
Utility
US 6,126,122 · App. 08/965,302
Double ratchet arm pipe clamp
Inventor:
Joseph P. Ismert
Patented Case
View Patent ↗
Granted: Oct 3, 2000
Filed: Nov 6, 1997
Inventor
Joseph P. Ismert
Assignee (at issue)
Sioux Chief Mfg. Co., 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.