Granted Patent
Utility
US 6,537,563 · App. 09/853,477
Dental acid etchant composition and method of use
Inventors:
Weitao Jia, Shuhua Jin
Patented Case
View Patent ↗
Granted: Mar 25, 2003
Filed: May 11, 2001
Inventors
Weitao Jia
Shuhua Jin
Assignee (at issue)
Jeneric/Pentron Incorporated
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.