US Plant Patent PP4167
Rose plant
PUBLIC DOMAIN
Patent expired December 20, 1994. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on November 26, 1996, but this patent ends 707 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
- PP4167
- Filed
- November 26, 1976
- Granted
- December 20, 1977
- Expires
- December 20, 1994
- Assignee
- JACKSON & PERKINS CO
- Inventor
- WARRINER WILLIAM 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 novel hybrid tea rose cultivar characterized by a vigorous, upright growth habit, white blossoms, and resistance to powdery mildew.
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 plant of the hybrid tea class, substantially as herein shown and described, characterized particularly as to novelty by the unique combination of a vigorous upright habit of growth, Garnette Brown new foliage maturing to dark green, nearly white buds with a tint of Egyptian Buff and tipped with Carmine, opening to white blooms of 18 to 25 petals, large prickles angled slightly downward and a light fragrance.
Read the full patent: US Plant Patent PP4167 in full — the complete specification, every figure, and the file history.