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Treatment of sticklac to obtain therefrom seedlac

US 2,632,003 A · Inventors: HUTCHISON TURNBULL ROBERT

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Why it's free to use

  • Granted March 17, 1953. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by March 17, 1970.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledDecember 14, 1951
GrantedMarch 17, 1953
Term endedMarch 17, 1970
Application number—
Classification (CPC)C09F1/02
Length3 pages

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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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