Here’s a pan you don’t see that often. The only markings on the back are TJ in one well and Pat. Applied For around the edge of the center mold. Filling the pan with batter is tricky. The 7 wells are narrow, and keeping the batter from running across the donut hole takes practice. Can’t say I have ever seen one with a patent number on it, so it looks like the patent was not granted. That makes it tougher to find any more information about the pan.
