Granted Patent
Utility
US 6,497,691 · App. 09/939,353
Structurally durable, drapeable breathable barrier film compositions and articles
Inventors:
Errette Bevins, Jorge Santisteban
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Aug 24, 2001
Inventors
Errette Bevins
Jorge Santisteban
Assignee (at issue)
Polytec GmbH
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.