Location: 1431 Northeast Broadway, Portland, Oregon, USA
Opened: October 1983
Closed: January 1985
I first place I learned about Judy's was in the 1999 Portland Gay History Walking Tour:
Judy’s, 1431 N.E. Broadway. Women’s bar, October 1983 to January 1985.
And that was the last I learned about it too. I suspect there is more information buried at the Gay and Lesbian Archives of the Pacific Northwest (GLAPN), but I don't have ready access.