U.S. patent number D537,930 [Application Number D/243,253] was granted by the patent office on 2007-03-06 for hand held rechargeable hot gas extraction device for volatizing or vaporizing at least one constituent of a material. This patent grant is currently assigned to Zhao Wei LLC. Invention is credited to Stephen G. Nelson.
United States Patent | D537,930 |
Nelson | March 6, 2007 |
Inventors: | Nelson; Stephen G. (San Diego, CA) |
---|---|
Assignee: | Zhao Wei LLC (San Diego,
CA) |
Appl. No.: | D/243,253 |
Filed: | November 21, 2005 |
Current U.S. Class: | D23/366 |
Current International Class: | 2899 |
Field of Search: | ;392/386,390-394,398,401,403,405-406 ;239/135-136,34,35,56-58,37,41,42,60 ;261/DIG.17,DIG.65,DIG.88,DIG.89 ;D23/355-369 |
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