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Syntax

kethya
can someone advise of a syntax to query:

patents issued prior to March 31, 2005

Thank you
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Re: Syntax

patentscope-wipo
Here they are

DP:[* TO 31.03.2005]
DP:[1800 TO 31.03.2005]
DP:[31.03.2005-100years TO 31.03.2005]

patentscope-wipo
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