Granted Patent
Utility
US 4,869,284 · App. 07/076,567
Manifold assembly
Inventors:
Darak M. Scott, Richard Davies
Patented Case
View Patent ↗
Granted: Sep 26, 1989
Filed: Aug 28, 1987
Inventors
Darak M. Scott
Richard Davies
Assignees (at issue)
Plessey Overseas Limited
Cryogenic and Vacuum Technology 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.