Granted Patent
Utility
US 5,661,939 · App. 08/442,310
Interlocking panel and method of making the same
Inventors:
Mark Lawrence Coulis, Jack T. Mowery
Patented Case
View Patent ↗
Granted: Sep 2, 1997
Filed: May 16, 1995
Inventors
Mark Lawrence Coulis
Jack T. Mowery
Assignee (at issue)
MATERION CORPORATION
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.