Granted Patent
Utility
US 5,938,438 · App. 09/074,986
Dental compound applicator
Inventors:
D. Keith Chipman, Roy L. Grantham
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: May 8, 1998
Inventors
D. Keith Chipman
Roy L. Grantham
Assignee (at issue)
Young Dental Manufacturing Company 1, LLC
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.