Almost 15 years ago I was visiting Alaska and purchased a Benchmade pocket knife with the open assist. I carried it everyday and it was the last pocket knife I ever bought. The opening spring broke recently and I contacted Benchmade. I couldn't provide a receipt but I could tell them the month/year of purchase and what store. They honored their lifetime warranty and repaired my knife. When I got it back it not only was fixed but the finish was touched up and it had been sharpened.
Anyone looking for a lifetime knife, this is a great company with quality products.