Granted Patent
Utility
US 6,152,593 · App. 09/369,849
Capsule holder for rotary mixing device
Inventors:
Olaf Schaefer, Werner Lissner
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Aug 9, 1999
Inventors
Olaf Schaefer
Werner Lissner
Assignee (at issue)
ESPE Dental 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.