Create line chart using filters based on another table

Sorry it's unclear in my statement. 

I hope to create a line chart like this:

The y-axis is amount of inventory and x-axis is time. The point is that I have to create a measure to get the correct amount at the given time point. eg. at any given time T, the correct amount should be sum of amount with filter eff_date <= T & exp_date > T

I am stuck in creating such a measure.

Thanks!