Granted Patent
Utility
US 6,180,209 · App. 09/408,431
Biaxially oriented polyester film
Inventors:
Yoshinori Sato, Yoshio Meguro
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Sep 29, 1999
Inventors
Yoshinori Sato
Yoshio Meguro
Assignee (at issue)
Mitsubishi Polyester Film 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.