Granted Patent
Utility
US 6,656,581 · App. 09/480,374
Incrementally stretched non-embossed films having high moisture vapor transmission rates (MVTRs)
Inventors:
Pai-Chuan Wu, Leopoldo V. Cancio
Patented Case
View Patent ↗
Granted: Dec 2, 2003
Filed: Jan 10, 2000
Inventors
Pai-Chuan Wu
Leopoldo V. Cancio
Assignee (at issue)
Clopay Plastic Products Company, Inc.
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.