Keep in mind this response is just my intellect running some calculations based off of astronomical tables (which I will post in the references), but just as a matter of curiosity, I'll report my findings. Also bear in mind that the accepted definition of which pole of Uranus is called "North" and which is called "South" is up for debate, because they keep flipping, so for the purposes of this exposition, I'll use the convention they used in the paper I was reading (though some astronomers use the opposite convention).
Now, the poles are continually flipping back and forth, but it's not like a light switch. It's like the earth, which has solstices, and equinoxes. On Uranus, it's just a little more extreme. During the solstices, one pole or other is directly facing the sun, and during the equinoxes, the sun is shining on the equator (i.e. neither pole is facing the sun). If you reflect, this is also the way energy works in nature, where it's not that all of a sudden, people wake up one day and discover that males or females are dominant, but rather it is a gradual progression over many years.
However, for the purposes of this explanation, I'll define the "pole shift" as happening on the equinoxes, since those are the periods during which dominance is passing from one pole to another. Since Samael said that 1965 was a period of dominance for women, whatever pole was active during that time must therefore be the feminine pole.
These are the poles of Uranus that were facing the sun during different periods in our history:
South: 1923 - 1966 (Feminine, Solstice: 1946)
North: 1966 - 2007 (Masculine, Solstice: 1985)
South: 2007 - 2050 (Feminine, Solstice: 2030)
North: 2050 - 2091 (Masculine, Solstice: 2069)
So we are currently in the beginning stages of a period of feminine dominance that started in 2007, and will last until 2050.