The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 30, 2021
Filed:
Jul. 19, 2017
Applicant:
Oxford University Innovation Limited, Oxford, GB;
Inventors:
Peter James Dobson, Oxford, GB;
Leonard Pincher, Norwich, GB;
Assignee:
OXFORD UNIVERSITY INNOVATION LIMITED, Oxford, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 3/00 (2006.01); G09F 19/22 (2006.01); B32B 5/22 (2006.01); E04F 15/02 (2006.01); G01N 21/81 (2006.01); E04B 5/46 (2006.01); B32B 5/00 (2006.01);
U.S. Cl.
CPC ...
G09F 19/228 (2013.01); B32B 5/00 (2013.01); B32B 5/22 (2013.01); E04B 5/46 (2013.01); E04F 15/02172 (2013.01); G01N 21/81 (2013.01);
Abstract
A product () for use on a surface or as part of a surface, the product comprising: a first layer () which carries an indication; and a second layer () which overlies at least a portion of the first layer (), the second layer () comprising a porous polymer; wherein the second layer () is opaque when dry such that the indication is masked and transparent when wet such that the indication is revealed.