No Page Rank

I came across a page on the site yesterday that does not yet have a Google Page Rank. The page covers RF Phase Detector Manufacturers. ~ Not very well because the page only lists one manufacturer.

Any how I always assume waiting 4 months to receive a page rank, maybe 5 if the spider is running late. The 'Last Modified' date on the page is 3/17. All the other pages in that section already have a ranking: RF Device Manufacturers.

The Phase Detector page shows up in a Google search so I know its been spidered?

Of course all the new pages added with in the last few months don't have a page rank either, but I expect that.