US Plant Patent PP4594
Poinsettia
PUBLIC DOMAIN
Patent expired January 10, 1999. 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
- PP4594
- Filed
- January 10, 1979
- Granted
- September 23, 1980
- Expires
- January 10, 1999
- Inventor
- OTT CLEVELAND
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 and distinct variety of poinsettia plant is a sport of Annette Hegg Hot Pink (U.S. Plant Pat. No. 3,761). The new variety is characterized by bracts which are a lighter pink than the parent and is particularly characterized by venation which is faint and obscure as compared with the more prominent venation of the parent.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct variety of poinsettia plant, substantially as herein illustrated and described, characterized as to novelty by bracts which are a lighter pink than the parent, Annette Hegg Hot Pink (U.S. Plant Pat. No. 3,761) and characterized particularly by much less prominent veins than the parent, the veins of the new variety being almost obscured by a heavy epidermal covering, particularly on the upper side.
Read the full patent: US Plant Patent PP4594 in full — the complete specification, every figure, and the file history.