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Unsymmetrical organic peroxide bleaching agent and method of preparing the same

US 1,754,913 A · Inventors: STODDARD WILLIAM B 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

  • Granted April 15, 1930. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by April 15, 1947.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledSeptember 8, 1928
GrantedApril 15, 1930
Term endedApril 15, 1947
Application number—
Classification (CPC)A21D2/14
Length4 pages

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1929193119331935193719391941194319451947Application filedSep 8, 1928Patent grantedApril 15, 1930Term endedApril 15, 1947

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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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