Can I Patent an Old Product that I Found?

No. For starters, you can only patent something that you actually invented (either alone or with other co-inventors). Secondly, any prior public disclosure or sale of that product is prior art against you. You cannot resurrect an old product from the dead and obtain patent rights to it.

Related Topics:

What is Prior Art?

What is a Patent Search?

Can Someone Patent My Invention Before Me?