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Process for increasing the filling power of land fowl feathers by digestion with acids and precipitating inorganic metal salts and feathers produced therefrom

US 2,805,116 A · Inventors: FLORIO PATRICK A

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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 September 3, 1957. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by September 3, 1974.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledNovember 8, 1954
GrantedSeptember 3, 1957
Term endedSeptember 3, 1974
Application number—
Classification (CPC)D06M19/00 +1 more
Length4 pages

Timeline

Timeline From USPTO dates

1955195719591961196319651967196919711973Application filedNov 8, 1954Patent grantedSep 3, 1957Term endedSep 3, 1974

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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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