Granted Patent
Utility
US 6,715,645 · App. 10/204,250
Mixing capsule and method of making and using same
Inventors:
Marc Peuker, Michael Sick, Klaus-Peter Stefan, Gabriele Hager, Angela Stenger, Gunther Eckhardt
Patented Case
View Patent ↗
Granted: Apr 6, 2004
Filed: Nov 27, 2002
Inventors
Marc Peuker
Michael Sick
Klaus-Peter Stefan
Gabriele Hager
Angela Stenger
Gunther Eckhardt
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.