US Plant Patent PP25951
Summer Frost
Peach tree named ‘Summer Frost’
UNDER PATENT
Still under patent. Protection ends May 2, 2034.
Twenty years from the filing date would end on January 22, 2034. This patent earned 100 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP25951
- Filed
- January 22, 2014
- Granted
- September 29, 2015
- Expires
- May 2, 2034
- Inventor
- ZAIGER GARY NEIL; GARDNER LEITH MARIE; ZAIGER GRANT GENE
Abstract
A new and distinct variety of peach tree ( Prunus persica ). 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. Tree with vigorous, upright growth. 2. Regular and productive bearer of large size fruit. 3. Fruit with attractive red skin color. 4. Fruit with firm, white flesh. 5. Fruit with good flavor and eating quality. 6. Fruit with good storage and handling quality.
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 peach tree ( Prunus persica ), substantially as illustrated and described.
Read the full patent: US Plant Patent PP25951 in full — the complete specification, every figure, and the file history.