Granted Patent
Utility
US 6,174,990 · App. 09/218,133
Films comprising biodegradable PHA copolymers
Inventor:
Isao Noda
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Dec 21, 1998
Inventor
Isao Noda
Assignee (at issue)
The Procter & Gamble Company
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.