It's not a new patent but from wikipedia it have legal effect:
Publication
Patent applications are generally published 18 months after the earliest priority date of the application. Prior to that publication the application is confidential to the patent office. After publication, depending upon local rules, certain parts of the application file may remain confidential, but it is common for all communications between an Applicant (or his agent) and the patent office to be publicly available.
The publication of a patent application marks the date at which it is publicly available and therefore at which it forms full prior art for other patent applications worldwide.
Optical closed loop microresonator and thyristor memory device
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Publication date
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Jun 25, 2014
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Mrs. Shepherd and others pointed the fact that the new logo of POET is a ''Schematic of an optical thyristor, squiggly lines are photons going in and out, straight lines are electrical''.
Def.:
http://en.wikipedia.org/wiki/Thyristor
