Granted Patent
Utility
US 5,407,784 · App. 07/671,937
Photocurable composition comprising maleic anhydride adduct of polybutadiene or butadiene copolymers
Inventors:
Arthur L. Berrier, Ronald J. Kumpfmiller
Patented Case
View Patent ↗
Granted: Apr 18, 1995
Filed: Mar 22, 1991
Inventors
Arthur L. Berrier
Ronald J. Kumpfmiller
Assignee (at issue)
W.R. Grace & Co. Conn.
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.