US Plant Patent PP27789
Polar Kist
Nectarine tree named ‘Polar Kist’
UNDER PATENT
Still under patent. Protection ends October 9, 2035.
Twenty years from the filing date would end on August 31, 2035. This patent earned 39 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP27789
- Filed
- August 31, 2015
- Granted
- March 21, 2017
- Expires
- October 9, 2035
- Inventor
- ZAIGER GARY NEIL; GARDNER LEITH MARIE; ZAIGER GRANT GENE
Abstract
A new and distinct variety of nectarine tree. The following features of the tree and its fruit are characterized with the tree budded on ‘Nemaguard’ Rootstock (non-patented), grown on Handford sandy loam soil with Stone Index rating 95, in USDA Hardiness Zone 9, near Modesto, Calif., with standard commercial fruit growing practices, such as pruning, thinning, spraying, irrigation and fertilization. Its novelty consist of the following combination of desirable features: 1. Tree with vigorous, upright growth. 2. Regular and productive bearer of medium size fruit. 3. Fruit with firm, crisp flesh with good eating quality. 4. Moderately juicy, which enhances flavor and eating quality. 5. Fruit with attractive red skin color.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
The invention claimed is: 1. A new and distinct variety of nectarine tree, substantially as illustrated and described.
Read the full patent: US Plant Patent PP27789 in full — the complete specification, every figure, and the file history.