I do/did have some interest in patent law. I hold three US patents (6,080,530; 6,042,990; and 5,935,760.) and one world patent. I have also set up patent databases to track competitor's art.

It's been sometime since I've been involved with this type of law, but I would strongly advise you to contact your attorney and see why the number you reference is not valid. I would make sure the maintainace fees have been paid.......Colin