Granted Patent
Utility
US 5,637,348 · App. 08/387,768
Method of increasing the SPF rating and compounds suitable for increasing the SPF rating of fibre or fabric
Inventors:
Bernard L. Thompson, Michael T. Pailthorpe
Patented Case
View Patent ↗
Granted: Jun 10, 1997
Filed: Jun 15, 1995
Inventors
Bernard L. Thompson
Michael T. Pailthorpe
Assignee (at issue)
Clariant Finance (BVI) 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.