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I have an idea that includes a 'click' spring retractable system (In reference to 'click' pen invention) that was published in 1974. The mechanism would be vastly similar.

How intricately do I have to describe my invention, in accordance to the referenced patent? Am I infringing on any copyrights if I use similar wording or diagrams to the referenced patent? I am looking to submit a provisional application.

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