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Door lever shank

US D520,331 S · Assignee: Schlage Lock Company · Inventors: Samson; Jeffrey T. et al.

USPTO PDF

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2 drawing sheets

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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.

Why it's free to use

  • Granted May 9, 2006. A US design patent lasts 14 years from grant (15 if filed from May 13, 2015), so this one ended May 9, 2020.
  • A design patent protects only how a product looks. We check US rights only.
FiledSeptember 9, 2004
GrantedMay 9, 2006
Term endedMay 9, 2020
Application numberD/212856
Classification (CPC)—
Length3 pages

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