Granted Patent
Utility
US 6,336,472 · App. 09/711,958
Pipe repair and replacement apparatus and method
Inventors:
Mark E. Eminger, Mikhail German
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Nov 15, 2000
Inventors
Mark E. Eminger
Mikhail German
Assignee (at issue)
Mark Eminger
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.