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Shingle element and method of making same

US 1,913,667 A · Inventors: HARSHBERGER NORMAN P

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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 June 13, 1933. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by June 13, 1950.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledFebruary 4, 1933
GrantedJune 13, 1933
Term endedJune 13, 1950
Application number—
Classification (CPC)—
Length8 pages

Timeline

Timeline From USPTO dates

193419361938194019421944194619481950Application filedFeb 4, 1933Patent grantedJune 13, 1933Term endedJune 13, 1950

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

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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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