Granted Patent
Utility
US 6,543,611 · App. 09/856,528
Mixer capsule
Inventors:
Marc Peuker, Angela Stenger, Martin Hartung, Gabriele Hager
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: May 23, 2001
Inventors
Marc Peuker
Angela Stenger
Martin Hartung
Gabriele Hager
Assignee (at issue)
3M ESPE 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.