US Plant Patent PP7732

Rutlan

Dogwood tree- `Rutlan`

PUBLIC DOMAIN

Patent expired July 30, 2010. 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: PP7732
Filed: July 30, 1990
Granted: December 3, 1991
Expires: July 30, 2010

Abstract

An F1 hybrid of Cornus kousa Hance and C. florida L. providing a new large-bracted dogwood, which is an exceptionally vigorous, highly floriferous, small, flowering tree, more nearly like C. florida, being full and spreading in habit rather than vase-shaped as in C. kousa, yet considerably larger as compared with C. florida, and having a period of floral display that is intermediate to that of the parental species.

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 dogwood tree, substantially as herein shown and described, characterized particularly as to novelty by the unique combination of its exceptionally high vigor and highly floriferous small flowering form, similar to its pollen parent as to its dense, spreading form but becoming much taller with age, intermediate to the two parents as to characteristics of the overwintering flower buds, time of flowering, and size of floral bracts, and exhibiting resistance to dogwood borers and "dogwood decline."

Read the full patent: US Plant Patent PP7732 in full — the complete specification, every figure, and the file history.