Is the Taurus PT 92 AF 9mm para still under Taurus lifetime warrenty?

It should be.

Some companies (coughS&Wcough) do not extend their warranty to the second owner if the firearm is resold. Taurus is not such a company, and to quote their website:

"The Taurus Unlimited Lifetime Repair Policy™ is just that. The lifetime of the gun...not the buyer. This is the first warranty of its type in the industry. No other manufacturer has the confidence to extend this kind of offer."

Might as well email them though to be sure!

Yes, Taurus has a lifetime warranty on all their firearms

Taurus's warranty is for the life of the gun, not the owner

Yup. Go to the Taurus website and follow their instructions if you need to send it back.

the warranty applies to the current owner, so you. if you're not dead, then yeah it's still valid. be prepared to use it to, that gun will have more problems than it's worth.

That info should be in the gun manual that came with the gun.