Granted Patent
Utility
US 5,620,553 · App. 08/443,949
Photopolymerisable liquid compositions for bonding friction material to metal
Inventors:
Margaret R. Haddon, Terence James Smith, Stuart Mansfield
Patented Case
View Patent ↗
Granted: Apr 15, 1997
Filed: May 18, 1995
Inventors
Margaret R. Haddon
Terence James Smith
Stuart Mansfield
Assignee (at issue)
Ciba-Geigy
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.