US Plant Patent PP13881
Jayfree Plum
Plum tree named ‘Jayfree Plum’
PUBLIC DOMAIN
Patent expired June 27, 2021. 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
- PP13881
- Filed
- June 27, 2001
- Granted
- June 17, 2003
- Expires
- June 27, 2021
- Assignee
- CORNELL RES FOUNDATION INC
- Inventor
- WATSON JOHN P
Abstract
A new a distinct variety of prune plum tree, Prunus domestica, originating as a hybrid seedling of the cross: ‘Valor’ (non-patented)בIroquois’(non-patented). This new variety is unique from its parents and other prune plums because it is has a freestone, non-shattering stone and flesh which processes very well yielding highly colored, high quality plum products.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
It is claimed: 1. A new and distinct variety of European-type plum tree, Prunus domestica, substantially as herein shown and described, characterized as to novelty by the unique combination of a free, non-shattering stone, highly colored processed plum products of excellent quality, yielded by a tree that is spreading in habit and precocious in bearing early, large crops of fruit which have acceptable fresh market size and good eating quality and shipping/handling attributes that meet grade standards for this fruit.
Read the full patent: US Plant Patent PP13881 in full — the complete specification, every figure, and the file history.