Granted Patent
Utility
US 4,762,641 · App. 07/055,889
Vermiculite moulding compositions and articles made therefrom
Inventors:
Sven T. Denton, Alan W. Atkinson
Patented Case
View Patent ↗
Granted: Aug 9, 1988
Filed: Jun 1, 1987
Inventors
Sven T. Denton
Alan W. Atkinson
Assignee (at issue)
T&N Materials Research Limited
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.