Historedia
Person

Hymen Lipman

Events
1
Episodes
3
Years
1858–1875

Every event in Historedia whose sources name Hymen Lipman, with the role they cite and all of that event’s episodes. This is not a biography, and mentions are grouped by name, so two people with the same name can share this page.

Events and episodes

  1. Hymen Lipman patents pencil with attached eraser

    1858–1875

    Role: Inventor and Stationer

    1. 1858-03-30 · Philadelphia, Pennsylvania, United StatesPatent Registration

      Hymen Lipman registered the first patent for a pencil with an attached eraser on March 30, 1858, in Philadelphia.

    2. 1862 · unresolvedPatent Sale

      Lipman sold his patent rights to Joseph Reckendorfer for $100,000 in 1862, leading to infringement litigation.

    3. 1875 · unresolvedSupreme Court Ruling

      The US Supreme Court declared the patent invalid in 1875, ruling against Reckendorfer.

Sources

  1. Hymen Lipman Wikipedia, revision of 2026-08-12