Granted Patent
Utility
US 6,194,519 · App. 09/118,962
Products useful as roof shingles and a process for making such products
Inventors:
Christopher A. Blalock, Larry W. Nelson
Patented Case
View Patent ↗
Granted: Feb 27, 2001
Filed: Jul 20, 1998
Inventors
Christopher A. Blalock
Larry W. Nelson
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.