Granted Patent
Utility
US 4,291,070 · App. 06/208,775
Coating of particles
Inventors:
Stuart R. Brown, Eric A. Feest, Fred Leach
Patented Case
View Patent ↗
Granted: Sep 22, 1981
Filed: Nov 20, 1980
Inventors
Stuart R. Brown
Eric A. Feest
Fred Leach
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.