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Device for varying resistances

US 3,038,136 A · Inventors: MARIE ADRIANUS JOHANNES WILHEL

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1 drawing sheet

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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 5, 1962. A patent granted before 1976 lasted at most 17 years from grant, so its term ended by June 5, 1979.
  • We check US rights only. Old patents can still inspire new ones: improvements may be patentable.
FiledFebruary 10, 1960
GrantedJune 5, 1962
Term endedJune 5, 1979
Application number—
Classification (CPC)G05B11/011
Length3 pages

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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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