How do you get Calphalon to resurface a old non-stick pan under warranty? the Calphalon website references only-----" Calphalon will replace any item found defective in material or workmanship when put to normal household use and cared for according to the instructions. Minor imperfections, surface markings as a result of shipping, and slight color variations are normal. This excludes damage from misuse or abuse, such as improper cleaning, neglect, accident, alteration, fire, theft, or use in a commercial establishment"
When my Calphalon pans lose their nonstick surfaces we just throw them out, been doing this for years.