US Plant Patent PP27828
Peach tree named American
UNDER PATENT
Still under patent. Protection ends November 12, 2035.
Twenty years from the filing date would end on October 26, 2035. This patent earned 17 days of term adjustment for delay at the Patent Office, which is why it runs longer.

The record
- Patent number
- PP27828
- Filed
- October 26, 2015
- Granted
- April 4, 2017
- Expires
- November 12, 2035
- Inventor
- ZAIGER GARY NEIL; GARDNER LEITH MARIE; ZAIGER GRANT GENE
No cultivar name of record
This patent does not name the plant, which is unusual for its date — by the mid-1990s nearly every plant patent carried a cultivar name. The grant identifies this one by its number and by a written description instead.
Nothing here is missing from our records: the patent itself states no name. Where one exists we show it, and we do not invent one.
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 having a vigorous, upright growth habit. 2. Regular and productive bearer of large size fruit. 3. Fruit with firm, non-melting, yellow flesh suitable for mechanical pitters. 4. Fruit with very good flavor and a good balance between acid and sugar. 5. Fruit with good storage and shipping 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, substantially as illustrated and described.
Read the full patent: US Plant Patent PP27828 in full — the complete specification, every figure, and the file history.