This Guy Trademarked the Symbol for Pi and Took Away Our Geeky T-Shirts
wired.com
wired.com
Although admittedly, an attorney practicing in a area that isn't his area of expertise is not much better (and maybe worse).
Interestingly, most of the letter seems to have been taken from [1] and [2]. Yes, it's copyright infringement. No, most lawyers don't care if copyright of their legal documents have been infringed.
[1]: https://www.z2systems.com/np/publicaccess/neonPage.do?pageId... [2]: http://webcache.googleusercontent.com/search?q=cache:TjCi1WP...
This is one of the many reasons why the US legal system is broken, and backwards.
Yeah, maybe their lawyers advised Zazzle "not to risk it" and take down all the pi products. That is what lawyers are paid to do, but that doesn't make it the right business decision.
Lawsuit are not the only risk; by acting so foolishly, Zazzle pissed off a bunch of customers and generated a ton of bad press for themselves.
But I agree that this isn't specific to the US.
More than likely it's a very enterprising young man interested in getting into the same game as the patent trolls though using a different sort of legal monopoly.
Keep in mind that trademarks are limited to particular areas of commerce. If someone got a trademark on π as the name of a line of condoms, for instance, that would not prevent anyone from using π as the name of a line of fishing poles.
The problem here is not with a common symbol being trademarked. The problem here is that "π." does not do a good job of identifying a line of clothing, because there have been plenty of prior lines of clothing that have included "π" on them.
edit - is the pi character from Times New Roman
http://www.trademarks411.com/marks/85785006-pi
http://commons.wikimedia.org/wiki/File:Pi_uc_lc.svg
I'm gonna trademark <a href= and see if I can get the internet turned off