US Plant Patent PP4601
Sweet gum
PUBLIC DOMAIN
Patent expired August 21, 1998. 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
- PP4601
- Filed
- August 21, 1978
- Granted
- October 14, 1980
- Expires
- August 21, 1998
- Assignee
- SIEBENTHALER COMPANY
- Inventor
- SIEBENTHALER JOHN D
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 sweet gum having an unusual coloration during the fall season including on the same tree at any given time multi-colored leaves of purplish blue, red, orange, pink and yellow, of various hues, with the coloration lasting longer than is normal for the species.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. A new and distinctive variety of Liquidamber styraciflua substantially as herein shown and described characterized particularly in the extent to which the multitude of fall colors are developed randomly throughout the tree and substained and in the hardiness of the tree to survive colder temperatures.
Read the full patent: US Plant Patent PP4601 in full — the complete specification, every figure, and the file history.