Specifying greater than range in HTTP request

Hi,

I'm able to search the index by giving the range in date or age as below:
http://localhost:9200/testing/testingtable/_search?pretty=true&q=date:[2012-04-03 TO 2012-06-22]
http://localhost:9200/testing/testingtable/_search?pretty=true&q=age:[20 TO 40]

But,how can i get the results for date>2012-06-22 and age >25..Is there any greater than operator that I should use in HTTP request.Can anyone suggest me please

Thanks
Krrish