[Amps] Reading data sheet right?

[JayKay]

Hi all

I am looking for confirmation that I am reading the data sheet right for a chip (Fairchild). The chip is a CD4081 (CMOS) and I need to pull the input down to a "0" when the input circuitry to the gate input (AND) gets disconnected from it. 

VDD is 12 volts.

Originally I had a 47K going to ground but I was getting about 2.5 volts on that input line. I had always thought (bad assumption) that a 10-50K ohm resistor on any CMOS input would keep that input at a zero if the line was opened going into the gate. 

I looked at the IOH and IOL data for the chip and it looks like it can handle 10-20ma of current. I tried a 1500 ohm to ground on the input to the AND gate and it worked just fine. I don't think I am stressing the chip as that's about 8ma. 

Am I reading the curves correctly?

Thanks in advance

Jay