Granted Patent
Utility
US 4,016,124 · App. 05/497,686
Cements comprising acrylic acid/itaconic acid copolymer and fluoroaluminosilicate glass powder
Inventors:
Stephen Crisp, Alan D. Wilson
Patented Case
View Patent ↗
Granted: Apr 5, 1977
Filed: Aug 15, 1974
Inventors
Stephen Crisp
Alan D. Wilson
Assignee (at issue)
NATIONAL RESEARCH DEVELOPMENT CORPORATION
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.