Granted Patent
Utility
US 5,534,616 · App. 08/491,929
Polyhydroxyalkanoates and film formation therefrom
Inventor:
Simon Waddington
Patented Case
View Patent ↗
Granted: Jul 9, 1996
Filed: Jul 13, 1995
Inventor
Simon Waddington
Assignee (at issue)
Zeneca Limited
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.