Universal recycling symbol outline version with green (#009900) fill.

The Möbius loop symbol, originally created by 23-year-old student Gary Anderson, is in the public domain, and is not a trademark. The CCA originally applied for a trademark on the design, but the application was challenged, and the corporation decided to abandon the claim. As such, trademark law does not restrict use of the recycling symbol, although local laws may restrict its use in product labeling.
Originally from en.wikipedia; description page is (was) here

01:07, 31 May 2006 Cbuckley 777x733 (1,998 bytes) (== Summary == Universal recycling symbol outline version with green (#009900) fill.)
17:06, 30 May 2006 Jpowell 767x723 (2,670 bytes) (Author: Chris Buckley)
Users Cbuckley, Jpowell on en.wikipedia