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by flomo 4385 days ago
Sorry, no reference. But I recall the term was not eligible for a trademark for some reason.
2 comments

I don't know why Bruce Perens apparently trademarked a bunch of things but not "open source" itself. However, as part of its trademark policy, OSI asks that people do not call software "open source" if it's not under an OSI-approved license:

http://opensource.org/trademark-guidelines#Usage_That_Does_N...

"open source" is descriptive (even if you capitalise it). Descriptions aren't trademarks; that's probably why.