Granted Patent
Utility
US 6,719,729 · App. 10/010,146
Prefilled telescoping multiple chamber ampoule device
Inventor:
Alberto C. Sogaro
Patented Case
View Patent ↗
Granted: Apr 13, 2004
Filed: Nov 8, 2001
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.