Granted Patent
Utility
US 5,618,908 · App. 08/681,323
Polyester resin with improved color characteristics
Inventor:
Renato Vosa
Patented Case
View Patent ↗
Granted: Apr 8, 1997
Filed: Jul 22, 1996
Inventor
Renato Vosa
Assignee (at issue)
Sinco Engineering, S.p.A.
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.