Thanks for the lawyerly perspective.The wordmark, logo and hole are all covered by different trademarks. The wordmark and logo are pretty straightforward on what they protect. The hole is a little different; they're claiming a trademark on the use of a "round hole" rather than any other shape of hole. Basically, they argued that because they used a round hole for the entire patent period and it's associated with Spyderco, they should be the only ones allowed to use a "round hole." As a lawyer (though I only deal with IP peripherally), I don't find it a particularly convincing argument.
It seems to me that devaluing products to defend a trademark that probably wouldn't hold in court is not a good business practice. I would really prefer that they focus more on improving the user experience and less on trying to defend a likely indefensible trademark. Trying to enforce this trademark against knife makers with unique designs will likely only result in negative publicity and legal fees for Spyderco.
I think if Spyderco did any kind of rigorous marketing study, they would likely find that many potential customers are less likely to buy products with non-functional holes or would be willing to pay less money for knives with non-functional holes.
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