US Plant Patent PP27627
Polar Gem
Nectarine tree named ‘Polar Gem’
UNDER PATENT
Still under patent. Protection ends August 28, 2035.
Twenty years from the filing date would end on August 10, 2035. This patent earned 18 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP27627
- Filed
- August 10, 2015
- Granted
- January 31, 2017
- Expires
- August 28, 2035
- Inventor
- ZAIGER GARY NEIL; GARDNER LEITH MARIE; ZAIGER GRANT GENE
Abstract
A new and distinct variety of nectarine tree ( Prunus persica var. nucipersica ). 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 Storie 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. Vigorous, upright tree growth. 2. Fruit with a high degree of red skin color. 3. Heavy and regular production of large size fruit. 4. Fruit with very good flavor and eating quality. 5. Mild, sweet, sub-acid white flesh fruit.
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 PP27627 in full — the complete specification, every figure, and the file history.