US Plant Patent PP5773
Mushroom plant
PUBLIC DOMAIN
Patent expired October 19, 2004. 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
- PP5773
- Filed
- October 19, 1984
- Granted
- July 22, 1986
- Expires
- October 19, 2004
- Assignee
- RESEARCH CORP
- Inventor
- ROYSE DANIEL J; MAY BERNARD P
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 variety of mushroom is described. This variety is similar to a type called "smooth white" in the trade. The new variety possesses advantages in both yield and size when compared to three commercially available lines 303, 310 and 348. The new variety also displays a unique electrophoretic isozyme phenotype.
Show the legal claimThe single numbered claim as granted — the legal text that defines what this patent covers.
What is claimed is: 1. A new and distinct variety of mushroom substantially as shown and described characterized particularly as to novelty by its greater productivity and yield when compared to three commercially available lines 303, 310 and 348 and by its unique electrophoretic isozyme phenotype.
Read the full patent: US Plant Patent PP5773 in full — the complete specification, every figure, and the file history.