January 14, 2009
On Friday, the European Patent Office (EPO) announced that due to a number of corrupt U.S. assignment records within the PRS legal status database (espacenet/OPS), each of the over 6.4 million assignment records will be deleted from the system next week and replaced with reloaded assignment data the first or second week in February. As referenced within the EPO announcement (link below), "[t]he erroneous data cannot be corrected manually mainly due to the fact that it would be practically impossible to separate each and every faulty record from the correct entries." The announcement further notes that the reload of data could take several months, and that the current codes US AS01 through US AS99 will be permanently removed and replaced with a single code US AS. The EPO also provided an example of a corrupt U.S. assignment record in need of correction (second link below).
EPO Announcement: LINK
Corrupt Record Example (PDF): LINK
EPO Announcement: LINK
Corrupt Record Example (PDF): LINK
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