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| Cannabis Facts & Information The Truth Behind Our Beloved Plant |
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* U.S. Patent 4,253,475 Water pipes or bongs
* U.S. Patent 4,148,326 Automatic loading bong * U.S. Patent 4,111,213 Smoking pipe * U.S. Patent 4,096,868 Smoking apparatus and methods of constructing and utilizing same * U.S. Patent 4,031,905 Smoking tube with check valve * U.S. Patent 4,031,904 Removable water tight base for bong * U.S. Patent 3,863,646 Smoking Device [edit] Designs These include ornamental designs for smoking pipes, substantially as shown and described. * U.S. Patent D443,950 Smoker's implement * U.S. Patent D443,103 Smoker's implement * U.S. Patent D442,327 Smoker's implement * U.S. Patent D381,116 Tobacco water pipe * U.S. Patent D368,325 Tobacco hookah * U.S. Patent D358,227 Tobacco hookah * U.S. Patent D261,439 Pipe * U.S. Patent D261,438 Pipe * U.S. Patent D256,506 Smoking device * U.S. Patent D246,391 Water cooled smoking device * U.S. Patent D244,473 Smoking pipe Retrieved from " List of bong patents - Wikipedia, the free encyclopedia " Categories: Drug paraphernalia | Lists of patents |
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#2 | ||
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420 Member
Join Date: Jan 2008
Location: green mountains
Posts: 115
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They let you patent things they won't let you sell? that makes about as much sense as most of the things our government does.
__________________
No Left Turn Unstoned ![]() ![]() SOW THE SEED, FREE THE WEED! ![]() "what a long strange trip it's been" - our friend, Jerry
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