Granted Patent
Utility
US 5,451,351 · App. 07/759,419
Method for rehabilitating a pipe with a liner having an electrically conductive layer
Inventor:
Richard Blackmore
Patented Case
View Patent ↗
Granted: Sep 19, 1995
Filed: Sep 13, 1991
Inventor
Richard Blackmore
Assignee (at issue)
Composite Components, 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.