US Plant Patent PP5345
Redwood tree
PUBLIC DOMAIN
Patent expired March 31, 2003. 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
- PP5345
- Filed
- March 31, 1983
- Granted
- November 20, 1984
- Expires
- March 31, 2003
- Assignee
- UNIV CALIFORNIA
- Inventor
- LIBBY WILLIAM J; TUFUOR KWABENA
No cultivar name of record
This patent does not name the plant. Through the 1980s and early 1990s that was still common: naming every new cultivar only became standard practice as plants began to be marketed under brand names. The grant identifies this one by its number and by a written description instead.
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 new variety of coast redwood useful for Christmas tree and ornamental purposes. The new variety exhibits dense columnar form with upturning lower branches. The growth rate is significantly slower than that of a normal redwood. The new variety does well in full sunlight or partial shade. The foliage color remains green throughout the year. The new variety can be reproduced on a commercial scale by rooting branch cuttings.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
We claim: 1. The new and distinct variety of redwood (Sequoia sempervirens), useful for Christmas tree and ornamental purposes, as herein described, characterized particularly by a dense columnar form, sometimes with upturning lower branches, slow growth, blue green winter color with buff or yellowish winter meristems, unusual cones, and ease of vegetative propagation.
Read the full patent: US Plant Patent PP5345 in full — the complete specification, every figure, and the file history.