Questions tagged [infringing]

The tag has no usage guidance.

1 question with no upvoted or accepted answers
Filter by
Sorted by
Tagged with
2 votes
0 answers

Can I reference an existing patent that was made in 1974? If so, how in depth?

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 ...
  • 21