US Plant Patent PP4242
imperial white
Dogwood tree -- imperial white variety
PUBLIC DOMAIN
Patent expired April 18, 1995. This plant is in the public domain — anyone may propagate and sell it.
Twenty years from the filing date would end on January 24, 1997, but this patent ends 647 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
- PP4242
- Filed
- January 24, 1977
- Granted
- April 18, 1978
- Expires
- April 18, 1995
- Inventor
- BLOW ELIZABETH PARRIS; STEPPE MURIEL FISCUS
Abstract
A new and distinct variety of white Flowering Dogwood, botanically known as Cornus florida is provided. The new variety most nearly resembles the native Flowering Dogwood and is distinguished therefrom by (1) the unusually large size of the solid white bracts which appear adjacent the flowers, (2) the unusually large size of the leaves, (3) a more vigorous and a more spreading growth habit, and (4) an improved drought tolerance.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
We claim: 1. A new and distinct variety of white Flowering Dogwood tree, botanically known as Cornus florida, substantially as illustrated and described, characterized particularly as to novelty by the unique combination of (1) the unusually large size of solid white bracts which appear adjacent the flowers, (2) the unusually large size of the leaves, (3) a more vigorous and a more spreading growth habit, and (4) an improved drought tolerance.
Read the full patent: US Plant Patent PP4242 in full — the complete specification, every figure, and the file history.