Lose _Pagerank_after_relocation

I had a web page like this:
http://mysite.com/my_product/index.htm (PREVIOUS PAGE)

I decided to change to:
http://mysite.com/my-product.htm (NEW PAGE)
AND set redirection (301) using .htaccess.

Now I found that the NEW PAGE has a page rank of 0/10 (blank bar).
Yes the page appears when I search in google.

After removing redirection I see that the PREVIOUS PAGE has a pagerank of 3/10
however the NEW PAGE still has a page rank of 0/10

Is there any way to get page rank to NEW PAGE or it is now banned due the redirection ?

Thanks

 

it will take time, as long as your main page has kept its PR.

 

I am with game over on this...the PR will not jump up right away. Fortunately, rankings are worth more PR and THAT will climb quickly.

Best;

Eric