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Door-locking device for washers, drying tumblers, and the like

US 1,647,713 A · Inventors: OLSON WERNER O

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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 November 1, 1927. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by November 1, 1944.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledMarch 18, 1924
GrantedNovember 1, 1927
Term endedNovember 1, 1944
Application number—
Classification (CPC)D06F37/42
Length9 pages

Timeline

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1925192719291931193319351937193919411943Application filedMarch 18, 1924Patent grantedNov 1, 1927Term endedNov 1, 1944

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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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