Granted Patent
Utility
US 6,583,202 · App. 09/950,976
Roofing membrane
Inventors:
Louis L. Grube, George Manuel Adao, Krishna Venkataswamy
Patented Case
View Patent ↗
Granted: Jun 24, 2003
Filed: Sep 13, 2001
Inventors
Louis L. Grube
George Manuel Adao
Krishna Venkataswamy
Assignee (at issue)
BUILDING MATERIALS INVESTMENT 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.