US Plant Patent PP4998
Asparagus plant Jersey Centennial
PUBLIC DOMAIN
Patent expired January 21, 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
- PP4998
- Filed
- January 21, 1981
- Granted
- March 15, 1983
- Expires
- January 21, 2001
- Assignee
- RESEARCH CORP
- Inventor
- ELLISON J HOWARD
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
The variety hereof, is particularly outstanding in its wide geographic adaptation, its ability to produce even in areas infested with Fusarium oxysporum, better than average rust resistance, with a tolerance also to crown rot (F. moniliforme), which is substantially better than comparable varieties and particularly Mary Washington from which the parentage hereof was derived.
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 hybrid variety of asparagus plant substantially as herein shown and described, characterized particularly as to novelty by the unique combination of very substantially increased yield, over prior known varieties, good field tolerance to root rot (Fusarium oxysporium) and crown rot (F. moniliforme), with decided ability to maintain these characteristics in different geographic areas and still produce similarily with the tolerances and resistance to rust being maintained at those wide spread geographic areas, and the commercially valuable aspects provided thereby.
Read the full patent: US Plant Patent PP4998 in full — the complete specification, every figure, and the file history.