Granted Patent
Utility
US 6,579,581 · App. 09/886,217
Polymer blend having good low-temperature impact strength
Inventors:
Wilfried Bartz, Franz-Erich Baumann, Guido Schmitz, Georg Oenbrink, Harald Haeger
Patented Case
View Patent ↗
Granted: Jun 17, 2003
Filed: Jun 22, 2001
Inventors
Wilfried Bartz
Franz-Erich Baumann
Guido Schmitz
Georg Oenbrink
Harald Haeger
Assignee (at issue)
Degussa AG
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.