US Plant Patent PP4516
Acanthus family
PUBLIC DOMAIN
Patent expired November 27, 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
- PP4516
- Filed
- November 27, 1978
- Granted
- April 1, 1980
- Expires
- November 27, 1998
- Inventor
- ENGELMANN HERMANN 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 new plant variety of the Acanthus family is related to the Fittonia Verschaffeltii argyroneura `Minima` and has comparably sized plant parts but is distinguished therefrom primarily by a variegated leaf blade that has a basic chlorophyllous field that is lighter than the chlorophyllous field of the parent `Minima` variety.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
I claim: 1. The new and distinct variety of the Acanthus family substantially as herein shown and described.
Read the full patent: US Plant Patent PP4516 in full — the complete specification, every figure, and the file history.