US Plant Patent PP4994
Pistachio tree
PUBLIC DOMAIN
Patent expired July 27, 2001. This plant is in the public domain — anyone may propagate and sell it.
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
- PP4994
- Filed
- July 27, 1981
- Granted
- March 15, 1983
- Expires
- July 27, 2001
- Inventor
- ANDERSON HENRY P; PURYEAR KENNETH L
No cultivar name of record
This patent does not name the plant. Through the 1980s and early 1990s that was still common: naming every new cultivar only became standard practice as plants began to be marketed under brand names. 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
This invention relates to a new and different variety of pistachio tree primarily identified by its rounded spreading growth habit, pleasing green color of mature foliage and its production of male flowers and pollen.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
The following is claimed: 1. A new and distinct variety of pistachio tree, identified as PN-46-M, characterized by a mature tree of rounded, spreading shape, wider than tall, having several main branches without central leader; rapid growth, abundant, leathery, healthy foliage, ease of propagation by budding or grafting; and further characterized by the abundant production of male flowers, in clusters, which produce pollen especially desirable for pollenizing a selected variety of female pistachio tree identified as PN-17-F for the production of hybrid seeds, said hybrid seeds producing a fast growing, disease resistant tree of value for use as understock upon which to bud or graft commercial nut bearing varieties of pistachio such as `Kerman`.
Read the full patent: US Plant Patent PP4994 in full — the complete specification, every figure, and the file history.