PATENTS MISSING IN THE BIBLIOGRAPHIC DATA EXTRACT FILE ------------------------------------------------------ MISSING_15.TXT Data for the 1,113 patent numbers listed below may be missing from the bibliographic data extract file. The missing data correspond to patent documents issued during these identified time periods: (1) utility patents granted from January 1, 1975 to December 31, 2015 and (2) other patent documents (design, plant, and reissue patents, defensive publications, and statutory invention registrations) granted from January 1, 1977 to December 31, 2015. In general, information for the listed patent numbers is missing because the documents were omitted from the original weekly electronic text files that were produced for the patents issued each week. Most of the missing data correspond to utility patents granted in 1975. Questions about the custom patent data extract files should be directed to: US Patent and Trademark Office Electronic Information Products Division Patent Technology Monitoring Team P.O. Box 1450 Alexandria, VA 22313-1450 tel : (571) 272-5600 e-mail: oeip@uspto.gov "Missing" utility patent numbers, 1975-2015, and other missing patent numbers, 1977-2015 (as of 13-July-2016): 3859524 3859525 3859526 3859527 3862619 3862620 3862767 3862768 3863585 3863586 3863794 3863795 3864567 3864568 3864837 3864838 3864993 3864994 3865448 3865449 3865471 3865472 3868449 3870613 3875075 3875512 3877095 3878340 3881407 3886091 3889228 3894607 3903602 3905342 3905928 3906711 3914383 3915690 3920525 3928097 3928098 3928099 3928100 3928101 3928102 3928103 3928104 3928105 3928106 3928107 3928108 3928109 3928110 3928111 3928112 3928113 3928114 3928115 3928116 3928117 3928118 3928119 3928120 3928121 3928122 3928123 3928124 3928125 3928126 3928127 3928128 3928129 3928130 3928131 3928132 3928133 3928134 3928135 3928136 3928137 3928138 3928139 3928140 3928141 3928142 3928143 3928144 3928145 3928146 3928147 3928148 3928149 3928150 3928151 3928152 3928153 3928154 3928155 3928156 3928157 3928158 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