Granted Patent
Utility
US 4,763,791 · App. 07/120,240
Dental impression supply kit
Inventors:
George E. Halverson, Gerald Nelson
Patented Case
View Patent ↗
Granted: Aug 16, 1988
Filed: Nov 3, 1987
Inventors
George E. Halverson
Gerald Nelson
Assignee (at issue)
Excel Dental Studios, 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.