US Plant Patent PP4954
Distinct variety of black walnut tree
PUBLIC DOMAIN
Patent expired April 16, 2001. 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
- PP4954
- Filed
- April 16, 1981
- Granted
- November 23, 1982
- Expires
- April 16, 2001
- Assignee
- PURDUE RESEARCH FOUNDATION
- Inventor
- BEINEKE WALTER F
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 and distinct cultivar of black walnut tree (Juglans nigra L.) which is distinctly characterized by extremely rapid growth rate, fairly strong central stem tendency, earlier than average time of leafing, and good straightness (little sweep and few crooks) thereby producing excellent timber qualities. The new variety has poor nut bearing qualities. Nut crops have been irregular and very light to none. This new variety of black walnut tree was discovered by the applicant in West Lafayette, Ind. in a yard area, and was discovered in the course of a search for unique and high quality black walnut trees to be utilized in breeding for outstanding timber producing potential. This selection has been designated as BW130 in records maintained on the performance of grafts made from the original selection and will be known henceforth as Tippecanoe-1.
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 black walnut tree substantially as illustrated and described, which has excellent timber quality, is fast growing, has fairly strong central stem tendency, little sweep, few crooks; earlier than average in time of leafing, and low nut production.
Read the full patent: US Plant Patent PP4954 in full — the complete specification, every figure, and the file history.