Granted Patent
Utility
US 4,874,315 · App. 07/016,250
Method for bonding of restorative materials to a tooth
Inventors:
John D. B. Featherstone, Lyndon Cooper, Michael L. Myers, Dennis G. A. Nelson
Patented Case
View Patent ↗
Granted: Oct 17, 1989
Filed: Feb 19, 1987
Inventors
John D. B. Featherstone
Lyndon Cooper
Michael L. Myers
Dennis G. A. Nelson
Assignee (at issue)
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.