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Paper and paperboard production process and corresponding novel retention and drainage aids, and papers and paperboards thus obtained

US 2009/0283232 A1 · Assignee: SNF SA · Inventors: Hund; Rene' et al.

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Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.

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Why it's free to use

  • Published November 19, 2009, and no patent has issued anywhere in its US family since.
  • Nothing has been filed in its family for more than seven years, so it is very unlikely to still be pending.
  • This status is inferred from USPTO records. Confirm it on Patent Center before relying on it.
FiledJuly 28, 2009
PublishedNovember 19, 2009
StatusAbandoned (inferred)
Application number12/511044
Classification (CPC)D21H23/16 +2 more
Length27 pages

Timeline

Timeline From USPTO dates

Application filedJuly 28, 2009Application publishedNov 19, 2009

Sources & verification

Official USPTO records

Full published documentText and every drawing sheet as a PDF.USPTOFile historyStatus, office actions, notices, fee records and petitions.USPTO Patent CenterPatent Public Search recordSearchable full text and bibliographic data.USPTO

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