Granted Patent
Utility
US 6,793,633 · App. 09/988,799
Blood and interstitial fluid sampling device
Inventors:
Joel S. Douglas, Jeffrey N. Roe, Ryszard Radwanski, Henry Grage, Michael S. Sanchez
Patented Case
View Patent ↗
Granted: Sep 21, 2004
Filed: Nov 20, 2001
Inventors
Joel S. Douglas
Jeffrey N. Roe
Ryszard Radwanski
Henry Grage
Michael S. Sanchez
Assignee (at issue)
Roche Diagnostics Operations, Inc.
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.