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Combination filter and ionic gas generator assembly for purifying machine tool coolants

US D273,697 S · Inventors: Johnson; Dennis E. J. et al.

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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 1, 1984. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended May 1, 1998.
  • A design patent protects only how a product looks. We check US rights only.
FiledMay 17, 1982
GrantedMay 1, 1984
Term endedMay 1, 1998
Application number06/378891
Classification (CPC)—
Length4 pages

Timeline

Timeline From USPTO dates

1985198719891991199319951997Design grantedMay 1, 1984Term endedMay 1, 1998

Sources & verification

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

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comJustia PatentsFull text, claims and classification.patents.justia.comFreePatentsOnlineFull text and PDF.freepatentsonline.comEspacenetForeign family and legal status.European Patent Office

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