So, what does this mean in an open source context? How can you meet the "use in commerce" requirement if you never actually offer anything for sale?
So, what does this mean in an open source context? How can you meet the "use in commerce" requirement if you never actually offer anything for sale?
For the apparel trademarks (hats, t-shirts) we had to show the proof that the clothing sales website was up to the public and prove with a transaction and photo of the finished clothing that we were, indeed, selling trademarked hats and shirts and producing finished goods. You even have to show clothing labels with your trademark on it or you won't get apparel marks for your software -- so no protection for your logo on swag.
Our hosted product is in a different trademark class because the USPTO considers downloaded software to be a product and hosted software to be a service. To prove use in commerce in the service class we had to offer the product (that one costs money, lol) for sale, prove a real transaction took place across state lines, and prove that the customer had taken delivery (welcome email, etc.)
It's quite a process but, as our trademark attorney (we used Tradmarkia) said, if you don't do all this your mark with either be denied by the USPTO, accepted and then challenged later by them, or contested by another applicant.
But, yes, you can trademark open source software even if you aren't charging for it. (IANAL)
ADDED: The disconnect isn't really that surprising. Historically, why would you trademark something if you had no intention of selling it? How would it even get broadly distributed if you were just giving something away? Obviously, those conditions don't necessarily apply today even though you have the same issues of confusing different goods and services that have always existed. As for the law firms, it's mostly an argument that if you want an IP lawyer in an open source context, you probably want one who actually has experience in the area.
"Use in commerce" is more about, are you actually making things with it, are you publishing those things, are there people interacting with your product under that name, etc. The fact that most commerce involves money changing hands is incidental.