What recourse do I have now?
Recourse for what? How have you been harmed by this new patent?
In 1987, I applied for a patent that was eventually rejected.
Why was the application rejected?
I recently found out that a patent was issued for the same exact product in 2000. The description and use are identical.
The description and use are largely irrelevant -- the invention is in the claims. There are a lot of patents out there that would appear to be pre-empted by prior art, or simply be obvious -- but wehen you read the claims, you realize that the actual "invention" is much more limited than the title or specification would imply, and that the limits in the claims actually DO describe a new invention.
In addition, when my patent was pending, an article ran in a nationwide trade publication describing it's use.
That may or may not be relevant. You can invent different ways to do the same thing or end up with the same result. Just because two different inventions end up with the same result, or are used the same way, doesn't mean that one of them isn't entitled to a patent.
If you feel that this patent is going to keep you from selling your widgets, there are a coupl eof things you can do. First, you could simply collect up all of this "prior art" info and keep a file -- then if you ever get sued, it should be easy to put together a case for invalidity of the patent.
Alternatively, if it turns out that you really have a strong case for invalidity, you could file an application for reexamination with the USPTO. This really isn't that cheap, you'll probably need a lawyer to do it, and it could backfire -- if you file for reexam, and the patent officeeither doesn't grant reexam, or worse, does the reexam and still finds the patent valid, you can pretty much give up on ever proving the patent invalid in a later infringement case.
Another thing to consider -- a rejection from the USPTO, even on final, is not the last word -- you can always file a continuation or something to keep the prosecution going. However, if you accept their rejections, you end up abandoning the application -- and the law is very clear, you may NOT rely on an abandoned application to prove an earlier invention date, and you may NOT rely on an abandoned application as prior art. The magazine article, however, may be considered prior art.
Finally, even if there is apparently prior art out there, you need to read the issued patent to both a) figure out what the claims actually cover, and see if there is prior art on what the claims cover, and b) figure out what the inventor and USPTO cited as prior art -- if your magazine article was cited in the application or patent, then the presumption is that the examiner considered the art, but did not find it to be prior art, and that is a very difficult preseumption to overcome if you want to try and invalidate the patent based on that art.
But my first question is still the key question -- why are you concerned about this patent?