It was announced that the second patent was going to be approved on 27 October 2009. Some have wondered if it was approved on schedule. Well, according to the records of the US Patent Office it was.
United States Patent
7,608,729
Winsness , et al.
October 27, 2009
It is right here:
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=7,608,729.PN.&OS=PN/7,608,729&RS=PN/7,608,729
What caught the SkunK's eye was we have temps above 212. That means specific presures and temperatures are needed besides just spinning the stuff really fast to get the oil out.
SkunK
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