Granted Patent
Utility
US 6,318,952 · App. 09/277,467
Pipe laying tool
Inventor:
Allen A. Waggoner
Patented Case
View Patent ↗
Granted: Nov 20, 2001
Filed: Mar 26, 1999
Inventor
Allen A. Waggoner
Assignee (at issue)
M&W Hook Enterprises
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.