So did Kleenex, Frigidaire (once used as the generic name for a refrigerator, but long since discarded) and Johnson & Johnson (Band-Aids). At least thinking about this thread has stopped me from using the "tarptent" term generically.

Added to the problem is that those unfamiliar with this category of lightweight single wall tents have no idea what a "tarptent" or a Tarptent is and think it's just a tarp....
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May your trails be crooked, winding, lonesome, dangerous, leading to the most amazing view--E. Abbey