US Plant Patent PP4329
Grapevine
PUBLIC DOMAIN
Patent expired December 23, 1997. 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
- PP4329
- Filed
- December 23, 1977
- Granted
- October 31, 1978
- Expires
- December 23, 1997
- Inventor
- KITAHARA TORU
No cultivar name of record
This patent does not name the plant, and for its era that is ordinary rather than an omission. Before about 1980, breeders frequently patented a plant without giving it a cultivar name at all — the grant identified it by its number, its parentage and a written description of the flower and foliage. Most plant patents from the 1930s to the 1970s have no name in them.
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 grapevine generally similar to the Perlette unpatented grapevine but which bears grapes which ripen approximately 10 days later than the Perlette and 15 days earlier than the Thompson Seedless unpatented grapevine, and which are somewhat pear shaped and exceptionally crisp.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
Having described the grapevine of my new variety, I claim: 1. A new and distinct variety of grapevine characterized by its similarity to the Perlette grapevine, which it most nearly resembles, but distinguished therefrom by bearing grapes which ripen approximately 10 days later, are elongated and somewhat pear shaped, and are harder and crisper than the grapes of either the Perlette or the Thompson Seedless.
Read the full patent: US Plant Patent PP4329 in full — the complete specification, every figure, and the file history.