John Landis Mason

John Landis Mason

John Landis Mason

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Jason Landis Mason (1832 - February 1902) was a native of Philadelphia, a tinsmith and the patentee of the metal screw-on lid for fruit jars that have come to be known as Mason jars. Many such jars were printed with the line "Mason's Patent Nov 30th 1858". He also invented the first screw top salt shaker in 1858.

Some assert that John Mason was at least partially of Native American ancestry.

United States patent 22,186, dated November 30, 1858, is primarily on the use of exterior threads in the jar and a corresponding metal cap. Later patents such as 102,913 improved upon this in various ways such as the addition of rubber rings.



  • at Text of 1858 patent
  • , Supreme Court, October 1976 term

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