US Plant Patent PP4537
Rose plant
PUBLIC DOMAIN
Patent expired January 26, 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
- PP4537
- Filed
- January 26, 1979
- Granted
- May 20, 1980
- Expires
- January 26, 1999
- Assignee
- JACKSON & PERKINS CO
- Inventor
- WARRINER WILLIAM A
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
An upright, vigorous, freely blooming rose plant of the hybrid tea class, characterized by its photosensitive pigment, with bud petals of Chrome Yellow and changing quickly to near Geranium Lake upon exposure to sunlight and darkening with age, with ability to maintain flower form throughout the life of the flower.
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 rose plant of the hybrid tea class, substantially as herein shown and described, characterized particularly as to novelty by its upright, free blooming plant, Chrome Yellow changing to Geranium Lake flower color, its ability to maintain flower form throughout the life of the flower and by its very slight fragrance.
Read the full patent: US Plant Patent PP4537 in full — the complete specification, every figure, and the file history.