US Trademark Registration Office United States Trademark Registration Office For trademark registration & Monitoring Los Angeles, California
This looks incredibly like a U.S. Government letter from the U.S Patent and trademark office. They wanted $375 to register the trademark. I just paid the USPTO for the renewal, and thought that there was some sort of mix-up so called the Govt site to verify receipt of payment.
This is a scam. Buried in the legalese is "... this offer is not being made by an agency of the government".
They had all the correct info for my trademark so it looked legitimate enough to make me call the gov't office to make sure they got the payment.
Had I not recently already paid the USPTO then I probably would have been ripped off by these guys!