Granted Patent
Utility
US 6,564,972 · App. 10/155,537
Double-barreled syringe with detachable locking mixing tip
Inventors:
Ravi Sawhney, Lance Hussey, Robert Hayman
Patented Case
View Patent ↗
Granted: May 20, 2003
Filed: May 23, 2002
Inventors
Ravi Sawhney
Lance Hussey
Robert Hayman
Assignee (at issue)
Dixcus Dental Impressions, 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.