Granted Patent
Utility
US 6,757,576 · App. 10/072,664
System and method for drawing and manufacturing bent pipes
Inventors:
Gary L. Greer, John D. Mack
Patented Case
View Patent ↗
Granted: Jun 29, 2004
Filed: Feb 5, 2002
Inventors
Gary L. Greer
John D. Mack
Assignee (at issue)
GCC, 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.