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Silos for the storage of bulk goods such as sugar, grain, artificial fertilizers and the like

US 2,935,263 A · Inventors: MARTIN WEIBULL NILS RUDOLF

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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 May 3, 1960. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by May 3, 1977.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledFebruary 13, 1956
GrantedMay 3, 1960
Term endedMay 3, 1977
Application number—
Classification (CPC)B65D88/744
Length5 pages

Timeline

Timeline From USPTO dates

1957196019631966196919721975Application filedFeb 13, 1956Patent grantedMay 3, 1960Term endedMay 3, 1977

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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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