US Plant Patent PP4902
Plum tree
PUBLIC DOMAIN
Patent expired March 23, 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
- PP4902
- Filed
- March 23, 1981
- Granted
- October 26, 1982
- Expires
- March 23, 2001
- Assignee
- SUPERIOR FARMING CO
- Inventor
- WEINBERGER JOHN H
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
A plum tree which is of medium size, medium vigor, upright-spreading, open, and round-topped; foliated with medium size, obovate, abruptly pointed leaves having a crenate margin, and small, green, opposite, globose glands; flowers from pointed, free buds of medium size and length; the flowers being medium in season, medium size, and white; and is a regular and very productive bearer of large, globose, symmetrical, semi-freestone fruit uniform both in size and form, the fruit having burgundy red skin, red flesh with a yellow tinge near the base, and a red pit cavity.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new and distinct variety of plum tree, substantially as illustrated and described, particularly characterized by the regular and very productive bearing of large, globose, symmetrical, semi-freestone fruit uniform both in size and form, the fruit having burgundy red skin, red flesh with a yellow tinge near the base, and a red pit cavity; the fruit, of mild, delicate flavor, most nearly resembling the yellow-flesh fruit of the Queen Ann but ripens approximately a week earlier, and also somewhat earlier than the red-flesh fruit of the Frontier.
Read the full patent: US Plant Patent PP4902 in full — the complete specification, every figure, and the file history.