### Question
What is the definition of treaty?


### Answer
The definition of **treaty** is as follows in *35 U.S.C. § 351*:

> the Patent Cooperation Treaty done at Washington, on June 19, 1970

#### Citation:
  - *35 U.S.C. § 351*
  - Heading: **PART IV-PATENT COOPERATION TREATY > CHAPTER 35-DEFINITIONS**

