EP1185196A1

Visual test utilizing color frequency doubling

Abstract

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Term

Term ended

Projected expiry passed 13 May 2020, 6.4 years ago.

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Citations
DocumentRelationOfficeCited during
US4822162ACitesUnited States of AmericaSearch report
US5176147ACitesUnited States of AmericaSearch report
US5187507ACitesUnited States of AmericaSearch report
WO9529627A1CitesWorld Intellectual Property Organization (WIPO)Search report
WO9634555A1CitesWorld Intellectual Property Organization (WIPO)Search report