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The original was posted on /r/todayilearned by /u/LonesomeRoad77 on 2024-11-04 21:35:13+00:00.

Original Title: TIL about Genericide - where a trademark is lost because the trademarked term becomes the generic name for the item so it can’t be copyrighted; this happened to “escalator” where it lost its copyright when it became the common term for any kind of moving stairs.