US Plant Patent PP19619
Ruby Kat
Interspecific prunus tree named ‘Ruby Kat’
UNDER PATENT
Still under patent. Protection ends February 4, 2028.
No term adjustment or disclaimer is recorded against this patent, so this is the full statutory term — twenty years from the filing date.

The record
- Patent number
- PP19619
- Filed
- February 4, 2008
- Granted
- January 6, 2009
- Expires
- February 4, 2028
- Inventor
- ZAIGER GARY NEIL; GARDNER LEITH MARIE; ZAIGER GRANT GENE
Abstract
A new and distinct variety of interspecific tree. The following features of the tree and its fruit are characterized with the tree budded on ‘Nemagaurd’ 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. Heavy and regular production of fruit. 3. Fruit with red flesh having very good flavor and eating quality. 4. Fruit having a good balance between acid and sugar with an average Brix of 18.6°. 5. Fruit with an attractive red skin color.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
1. A new and distinct variety of interspecific tree, substantially as illustrated and described, characterized by its large size, vigorous, upright growth with heavy production and a regular bearer of large, firm, red flesh fruit with very good flavor and eating quality; the fruit is further characterized by having an attractive red skin and flesh color, with good storage and shipping quality.
Read the full patent: US Plant Patent PP19619 in full — the complete specification, every figure, and the file history.