US Plant Patent PP5687
Zelkova tree
PUBLIC DOMAIN
Patent expired July 9, 2004. 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
- PP5687
- Filed
- July 9, 1984
- Granted
- March 11, 1986
- Expires
- July 9, 2004
- Assignee
- FRANK SCHMIDT & SON CO J
- Inventor
- HALKA CHESTER J
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 novel Japanese zelkova tree characterized by its rapid growth rate, large foliage, long arching branches, yellow autumn color, and somewhat earlier autumn color changes and defoliation.
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 Japanese zelkova tree, substantially as herein shown and described, characterized particularly as to novelty by its rapid rate of growth, large foliage, long arching branches, yellow autumn color of its foliage and autumn changes which occur somewhat earlier than similar changes in other Japanese zelkova varieties.
Read the full patent: US Plant Patent PP5687 in full — the complete specification, every figure, and the file history.