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.
Slashdot Mirror
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.