Granted Patent
Utility
US 6,019,599 · App. 09/129,867
Suction system for the laser processing of work pieces in dental technology
Inventors:
Alexander Volcker, Stephan Geiger
Patented Case
View Patent ↗
Granted: Feb 1, 2000
Filed: Aug 6, 1998
Inventors
Alexander Volcker
Stephan Geiger
Assignee (at issue)
Degussa-Huels 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.