Granted Patent
Utility
US 4,322,485 · App. 06/156,584
Preparation of materials
Inventors:
Keith Harrison, Peter McGeehin, Alan Hooper
Patented Case
View Patent ↗
Granted: Mar 30, 1982
Filed: Jun 5, 1980
Inventors
Keith Harrison
Peter McGeehin
Alan Hooper
Assignee (at issue)
United Kingdom Atomic Energy Authority
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.