Granted Patent
Utility
US 6,227,736 · App. 09/171,446
Multi-chamber ampoule for measured doses of liquids
Inventor:
Alberto C. Sogaro
Patented Case
View Patent ↗
Granted: May 8, 2001
Filed: Aug 19, 1999
Inventor
Alberto C. Sogaro
Assignee (at issue)
Dentaco Dentalindustrie und - Marketing GmbH
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.