Granted Patent
Utility
US 6,446,915 · App. 09/356,640
Plumbing slider bracket and double ratchet arm pipe clamp assembly
Inventor:
Joseph P. Ismert
Patented Case
View Patent ↗
Granted: Sep 10, 2002
Filed: Jul 19, 1999
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.