Granted Patent
Utility
US 6,706,064 · App. 09/446,833
Expandable device
Inventor:
Anthony Walter Anson
Patented Case
View Patent ↗
Granted: Mar 16, 2004
Filed: May 22, 2000
Inventor
Anthony Walter Anson
Assignee (at issue)
Anson Medical Limited
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.