CD4050B (CMOS Hex Buffer/Converters) not behaving according to data sheet.

I am designing a board using a 5V microcontroller that must send control signals to some CD4000 family logic. I have designed in four CD4050B hex logic level converters to convert the 0~5V signals to 0~12V signals. My understanding from the data sheet is that in supplying 12V power to pin 1 and ground to pin 8 a logic low (below 3V) to any gate input (3,5,7,9,11,14) the resulted logic low to their corresponding outputs should also be low (i.e. 0V) and they are. Furthermore, a logic high (above 3V) input to any of these gates should bring about a logic high on their corresponding output pins (2,4,6,10,12,15). I can cause the microcontroller to output logic highs of 5V sent to the inputs on the buffer's inputs by enabling some internal pull-up resistors in the microcontroller. I read 5.02V on the inputs after doing this but all I see on the outputs of the CD4050B is about 0.03V. Are these chips defective? The Mouser tech I chatted with wrote he agreed that the devices are not behaving according to the data sheet and they sent me four replacement devices FOC. Before I start trying to test these tiny TSSOP devices I would like to have feedback from TI that I am correctly understanding how to use these logic-level changing buffers.