US Plant Patent PP14412
Burnecttwelve
Nectarine tree named ‘Burnecttwelve’
PUBLIC DOMAIN
Patent expired January 7, 2023. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on December 30, 2022. This patent earned 8 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP14412
- Filed
- December 30, 2002
- Granted
- December 23, 2003
- Expires
- January 7, 2023
- Assignee
- BURCHELL NURSERY INC
- Inventor
- GERDTS TIMOTHY J; SLAUGHTER JOHN K
Abstract
A new and distinct variety of nectarine tree ( Prunus persica sub species nuciperisica ), denominated varietally as ‘Burnecttwelve’, and which produces an attractively colored yellow-fleshed, clingstone nectarine, which is mature for harvesting and shipment approximately May 19 to May 28 under 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.
Having thus described and illustrated our new variety nectarine tree, what we claim is new and desire to secure by Plant Letters Patent is: 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 and shipment approximately May 19 to May 28 under the ecological conditions prevailing in the San Joaquin Valley of central California.
Read the full patent: US Plant Patent PP14412 in full — the complete specification, every figure, and the file history.