US Plant Patent PP4620
Rose plant
PUBLIC DOMAIN
Patent expired April 23, 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
- PP4620
- Filed
- April 23, 1979
- Granted
- January 13, 1981
- Expires
- April 23, 1999
- Assignee
- WALTER JOHN C
- Inventor
- WINCHEL JOSEPH F
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 hybrid tea rose produced by me crossing First Prize (U.S. Plant Pat. No. 2,774) with Piccadilly (not patented in the United States, but grown widely in Europe).
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 by the combination of a plant with many basal canes, matte foliage, many thorns, usually one bloom per stem, large, high-centered blooms of striking yellow color, with sun exposure producing an attractive red coloration at petal edges, and of good keeping qualities both on the bush and as a cut flower.
Read the full patent: US Plant Patent PP4620 in full — the complete specification, every figure, and the file history.