Granted Patent
Utility
US 6,306,921 · App. 09/702,791
Foamed beads of polyester resin
Inventors:
Hussein Al Ghatta, Tonino Severini, Luigi Pulcini
Patented Case
View Patent ↗
Granted: Oct 23, 2001
Filed: Nov 1, 2000
Inventors
Hussein Al Ghatta
Tonino Severini
Luigi Pulcini
Assignee (at issue)
Sinco Ricerche 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.