Granted Patent
Utility
US 4,894,255 · App. 06/890,889
Modification of surface properties of ceramics
Inventors:
Trevor Page, Philip J. Burnett
Patented Case
View Patent ↗
Granted: Jan 16, 1990
Filed: Jul 28, 1986
Inventors
Trevor Page
Philip J. Burnett
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.