US Plant Patent PP4049
Zwemania
Rose plant -- Zwemania variety
PUBLIC DOMAIN
Patent expired May 10, 1994. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on October 14, 1995, but this patent ends 522 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
- PP4049
- Filed
- October 14, 1975
- Granted
- May 10, 1977
- Expires
- May 10, 1994
- Assignee
- CONARD PYLE COMPANY
- Inventor
- ZWEMSTRA JELLE J
Abstract
A rose plant of the Grandiflora Class, obtained as a bud mutation of the variety Sweet Promise (known in the United States as Sonia) (U.S. Plant Pat. No. 3,095).
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 Grandiflora rose-plant of vegetative reproduction, characterized by the fact that, from the physical point of view, the plant with Spinach green mature wood, is erect, the flower is double, light vermilion, the petals are very firm and give it a form which is, first of all, high-centered, then when open, the petals are projecting and overlapping; from the biological point of view, this rose-plant is of vigorous vegetation, its capacity for re-blooming is excellent, either under glass or in the open air; it is very resistant to diseases, and its blooms last a long time, either on the plant, or when cut; substantially as shown and described.
Read the full patent: US Plant Patent PP4049 in full — the complete specification, every figure, and the file history.