Granted Patent
Utility
US 6,206,693 · App. 09/311,436
Buccal impression registration apparatus, and method of use
Inventor:
Bruce Willard Hultgren
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: May 14, 1999
Inventor
Bruce Willard Hultgren
Assignee (at issue)
Iris Development Corporation
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.