Granted Patent
Utility
US 6,039,798 · App. 09/029,416
Silica products and UV curable systems
Inventors:
Derek Aldcroft, Sharron Bates, Graham J. Earl
Patented Case
View Patent ↗
Granted: Mar 21, 2000
Filed: Feb 12, 1999
Inventors
Derek Aldcroft
Sharron Bates
Graham J. Earl
Assignee (at issue)
Crosfield 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.