Granted Patent
Utility
US 4,126,937 · App. 05/780,467
Material and method for introducing ionic silver to dental pulp
Inventors:
Franklin H. Ellis, Edward A. Thibodeau
Patented Case
View Patent ↗
Granted: Nov 28, 1978
Filed: Mar 23, 1977
Inventors
Franklin H. Ellis
Edward A. Thibodeau
Assignees (at issue)
Sybron Corporation
Eastman Dental Center
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.