The only thing I see interesting in the new 10-Q is the Mexican mineral rights fee that is due JAN 31:
Mining rights
We are required to make payments to the Mexican government on a semi-annual basis to maintain its mining concessions. The next semi-annual payment of $51,466 is due on January 31, 2013.At the date of this report, we do not have the funds to make this payment and are seeking to raise the necessary funding to be able to make this payment on a timely basis.
USPR has never been a timely company but this issue, I would assume, is one they won't be able to delay payment on.