Granted Patent
Utility
US 5,990,271 · App. 08/684,007
Films and absorbent articles comprising a biodegradable polyhydroxyalkanoate comprising 3-hydroxybutyrate and 3-hydroxyhexanoate comonomer units
Inventor:
Isao Noda
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jul 23, 1996
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.