Granted Patent
Utility
US 6,138,359 · App. 08/831,404
Curved wall and ceiling frame member and method and apparatus for producing the same
Inventor:
Charles Mears
Patented Case
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Granted: Oct 31, 2000
Filed: Apr 1, 1997
Inventor
Charles Mears
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.