×

Temperature indicator

  • US 4,156,365 A
  • Filed: 05/15/1978
  • Issued: 05/29/1979
  • Est. Priority Date: 08/02/1976
  • Status: Expired due to Term
First Claim
Patent Images

1. Safe food temperature sensing utensil comprising,means defining a nonmetallic, food holding vessel,means defining a thermochromic paint layer on the vessel positioned to be visible to a user and constructed and selected to change color twice in a selected temperature range comprising 60°

  • -70°

    C. to provide indications of the levels of temperature at which denaturation of the food, microbial, growth in the food and tissue injury to the consumer of food carried by the untensil would be likely and to reverse said color changes when recooled.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×