Granted Patent
Utility
US 4,605,351 · App. 06/671,550
Closure lining machine
Inventors:
Clive D. Hatcher, Alan H. Hill, Geoffrey King
Patented Case
View Patent ↗
Granted: Aug 12, 1986
Filed: Nov 15, 1984
Inventors
Clive D. Hatcher
Alan H. Hill
Geoffrey King
Assignee (at issue)
W. R. Grace & Co.
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.