The patent is published online (Score 2, Informative)

The patent, like all patents, is published online. Go to: http://patft1.uspto.gov/netahtml/PTO/srchnum.htm And search for patent 3,167,440. It's four pages long. The ingredients are listed, though the exact proportions are not (several examples are given). Warning: Firefox made me install QuickTime to view the scanned images of the patent.