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I'm still waiting for the patent to expire so I can try this knot: http://www.google.com/patents/US5997051 http://www.google.com/patents/US5997051 (I just noti

by mc808 11y ago

I'm still waiting for the patent to expire so I can try this knot: http://www.google.com/patents/US5997051 http://www.google.com/patents/US5997051 (I just noticed it says the fee has lapsed. Does that imply it's free to use?)

yitchelle 11y ago
Why would anyone patent a shoe tying knot? a serious question.