In a recent trademark registration, on 6 Aug 09, the United Football league registered the team name “San Francisco Redwoods”. This indicates a last minute change of the expected team name from the previously registered “Rockfish” to newly registered “Redwoods”.
In addition, the league has also registered the trademark “California Redwoods”. However the league has registered the graphical “SF” as a trademark. This would indicate that the league is going forward with the “San Francisco” moniker.
The United Football league also registered the graphical marks “LV”, “FL” and “NY” for the other team jerseys.
The UFL plans to unveil the official San Francisco team name and uniform later today, where we expect this latest information to be confirmed.
This information was discovered using the US Trademark search engine
Go Redwoods!

August 11, 2009
[...] league also trademarked “California Redwoods,” but the trademarking of a graphical “SF” would seem [...]