Concerning bringing the land patent up in my name: On my warrantee deed for my land, it says "...sells and conveys..." but does not say "grants and/or assigns." So,

I am researching the grantee, who may no longer exist. Does anyone have any suggestions as to what to do if the grantee cannot be contacted or no longer exists? What if it was a corporation which is now defunked?

Thanks-FF