US Plant Patent PP4391
Rose plant-Deladel
PUBLIC DOMAIN
Patent expired December 12, 1997. 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
- PP4391
- Filed
- December 12, 1977
- Granted
- March 6, 1979
- Expires
- December 12, 1997
- Assignee
- JACKSON & PERKINS CO
- Inventor
- DELBARD GEORGES A
No cultivar name of record
This patent does not name the plant, and for its era that is ordinary rather than an omission. Before about 1980, breeders frequently patented a plant without giving it a cultivar name at all — the grant identified it by its number, its parentage and a written description of the flower and foliage. Most plant patents from the 1930s to the 1970s have no name in them.
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 vigorous well-branched upright plant of the hybrid tea class, having long-lasting flowers of a non-blueing red color, with very strong resistance to Rose Powdery Mildew and slight fragrance.
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 cultivar of rose of the hybrid tea class, substantially as herein shown and described, characterized particularly as to novelty by the unique combination of its vigorous, heavily branched plant, a similarity to the cultivar Super Star (Tropicana, U.S. Plant Pat. No. 1,969) of its stems, thorns and foliage, a pronounced resistance to Rose Powdery Mildew, a brown corky surface of irregularly shaped areas on older stems, a very uniform bud and flower color very near to Wilson's Blood Red, and a very slight flower fragrance.
Read the full patent: US Plant Patent PP4391 in full — the complete specification, every figure, and the file history.