Granted Patent
Utility
US 4,336,161 · App. 06/085,201
Composite materials comprising deformable xerogel within the pores of particulate rigid supports useful in chromatography
Inventors:
Alan Rosevear, Patrick Mattock
Patented Case
View Patent ↗
Granted: Jun 22, 1982
Filed: Oct 16, 1979
Inventors
Alan Rosevear
Patrick Mattock
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.