US Plant Patent PP7924
Bio Six
Cherry tree Rootstock Bio Six
PUBLIC DOMAIN
Patent expired February 23, 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
- PP7924
- Filed
- February 23, 1990
- Granted
- July 28, 1992
- Expires
- February 23, 2010
Abstract
A cherry tree rootstock characterized by wide and strong root anchorage, easy vegetative propagation, a thicker shoot and a harder root than the known variety "Colt", a more compact tree shape and darker green leaves than the Colt variety, and a hexaploid (2n=48) chromosome structure as compared to the triploid (2n=24) chromosome structure in the Colt variety.
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 cherry tree rootstock, substantially as illustrated and described herein, particularly characterized by a thicker shoot and darker green leaves than the known variety "Colt", a more compact tree shape than the Colt variety, and a hexaploid (2n=48) chromosome structure as compared to the triploid (2n=24) chromosome structure in the Colt variety.
Read the full patent: US Plant Patent PP7924 in full — the complete specification, every figure, and the file history.