---
kind: "unit"
title: "35"
title_heading: "Patents"
key: "ptIV/ch37"
level: "chapter"
label: "Chapter 37"
heading: "National Stage"
release: "119-102"
date: "2026-07-12"
url: "https://uscodex.org/usc/35/ptIV-ch37"
sections_count: 6
---

# Chapter 37 — National Stage

Title 35 — Patents › Part IV — Patent Cooperation Treaty

## Sections

- [§371. National stage: Commencement](/usc/35/371.md)
- [§372. National stage: Requirements and procedure](/usc/35/372.md)
- [§373. Repealed.](/usc/35/373.md)
- [§374. Publication of international application](/usc/35/374.md)
- [§375. Patent issued on international application: Effect](/usc/35/375.md)
- [§376. Fees](/usc/35/376.md)