US Plant Patent PP4152
White rose plant seedling
PUBLIC DOMAIN
Patent expired November 15, 1994. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on February 3, 1997, but this patent ends 811 days earlier — a terminal disclaimer gives term back. A source that calculates twenty years from filing would tell you this plant is still protected when it is already free.
The record
- Patent number
- PP4152
- Filed
- February 3, 1977
- Granted
- November 15, 1977
- Expires
- November 15, 1994
- Assignee
- E G HILL CO INC
- Inventor
- JELLY ROBERT G
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 white rose cultivar most suitable for greenhouse culture for cut flower production, the new plant being distinguished by its abundant and continuous production of small white flowers borne on long, moderately strong stems, its extraordinary vigor as a greenhouse rose which permits a greater spacing of the plants and an improvement in the economics of rose plant costs, and by the good vase life of its flowers.
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 substantially as herein shown and described, characterized by its abundant and continuous production of white blossoms of relative small size but excellent form, borne on long, moderately strong stems, and by its extraordinary vigor for a greenhouse rose.
Read the full patent: US Plant Patent PP4152 in full — the complete specification, every figure, and the file history.