US Plant Patent PP17233
Brunectwentyone
Nectarine tree, ‘Brunectwentyone’
PUBLIC DOMAIN
Patent expired June 27, 2025. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on December 17, 2024. This patent earned 192 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP17233
- Filed
- December 17, 2004
- Granted
- November 28, 2006
- Expires
- June 27, 2025
- Assignee
- BURCHELL NURSERY INC
- Inventor
- GERDTS TIMOTHY J; SLAUGHTER JOHN K
Abstract
A new and distinct variety of nectarine tree Prunus persica, and which is denominated varietally as ‘Burnectwentyone’, and which produces an attractively colored yellow-fleshed, clingstone, nectarine which is mature for harvesting approximately September 21 to October 2 under the ecological conditions prevailing in the San Joaquin Valley of central California.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new distinct variety of nectarine tree substantially as illustrated and described, and which is characterized principally as to novelty by producing an attractively colored yellow-fleshed, clingstone, nectarine which is mature for harvesting approximately September 21 to October 2 under the ecological conditions prevailing in the San Joaquin Valley of central California.
Read the full patent: US Plant Patent PP17233 in full — the complete specification, every figure, and the file history.