Dude, you got your causality totally backwards. Yield curve inverts because everyone expects recession and the resulting easing of the monetary policy.
A recession is a normal part of the business cycle. Everyone wants to go to the party, but nobody wants to stay and clean up.
I posted a link to the 3m/10y spread above, it has the recessions shaded in grey. The only one that was a complete false signal was the inversion in 1998 during the EM turmoils. Most of the time it took a while to materialize (or to report, depending how you want to explain it) - from May 1989 to June 1990 for the recession of the 90s, July 2000 to Mar 2001 for the Dot Com bust and from Jun 2006 to Jan 2008 for the GFC. That's in the modern period, the ancient history like the 60s and the 70s it took even longer. This said, equity markets reacted to these inversions within a much shorted timeframe, following the usual waterfall - bond market are smart, equity markets are dumb and economists are complete idiots.
An additional consideration should be that the higher the overall level of interest rates, the easier it is for the curve to invert. So an inversion with 3m bills at 2.5% is much more significant than an inversion at 6.5%, for example.