# Patent for a zipper design sat unused for 40 years, now finally realized

A patent for a new type of zipper, filed 40 years ago, was never produced until now. An inventor or team has finally built the concept into a working prototype. This story highlights how overlooked ideas can become practical innovations, even decades later.

**Importance:** 3/5

## Sources

### Technology
- [Hacker News](https://www.yankodesign.com/2026/05/31/a-zipper-patent-sat-in-a-garage-for-40-years-now-its-real/) — Wed, 22 Jul 2026 15:37:25 +0000