US Plant Patent PP17135
Gillet
Walnut tree named ‘Gillet’
PUBLIC DOMAIN
Patent expired January 12, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on September 17, 2024. This patent earned 117 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP17135
- Filed
- September 17, 2004
- Granted
- October 10, 2006
- Expires
- January 12, 2025
- Assignee
- UNIV CALIFORNIA
- Inventor
- MCGRANAHAN GALE; LESLIE CHARLES
Abstract
A new and distinct variety of walnut tree denominated ‘Gillet’ is described. This new cultivar comes into bearing young, produces well mid-season, and bears a jumbo sized nut with light colored kernels of uniform size. The new cultivar can be harvested prior to ‘Chandler’ and furthermore shows low susceptibility to walnut blight.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new variety of walnut tree substantially as shown and described herein.
Read the full patent: US Plant Patent PP17135 in full — the complete specification, every figure, and the file history.