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Soluble photographic layers of colloidal gums and process for conditioning such gumsfor such use

US 2,370,321 A · Inventors: MUELLER FRITZ W H

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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 February 27, 1945. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by February 27, 1962.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledApril 25, 1942
GrantedFebruary 27, 1945
Term endedFebruary 27, 1962
Application number—
Classification (CPC)G03C1/805
Length3 pages

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1943194519471949195119531955195719591961Application filedApril 25, 1942Patent grantedFeb 27, 1945Term endedFeb 27, 1962

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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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