Sometimes I feel like The New York Times is reading my mind. There are articles like this one that target to my questions (no matter how many times I look for information on “copyright”, “trademark”, etc.) It may not prevent my forgetting of the differences (they slip from my brain after a few days), but it’s helpful, anyway. For origami artists, I believe it’s worth reading.
https://www.nytimes.com/article/copyrights-trademarks-patents.html?algo=identity&fellback=false&imp_id=304404760&imp_id=522037532&action=click&module=Smarter%20Living&pgtype=Homepage
