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The Patent Garden

US Plant Patent PP8790

Aceraceae Dolorosa et Jeromus

PUBLIC DOMAIN

Patent expired June 21, 2011. This plant is in the public domain — anyone may propagate and sell it.

Twenty years from the filing date would end on July 17, 2012, but this patent ends 392 days earlier — a terminal disclaimer gives term back. A source that calculates twenty years from filing would tell you this plant is still protected when it is already free.

The record

Patent number
PP8790
Filed
July 17, 1992
Granted
June 21, 1994
Expires
June 21, 2011
Inventor
RUDY CHRISTOPHER J; RUDY MICHAEL J; RUDY PETER J; RUDY ANDREW J; RUDY MARK T M

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 novel, apparent interspecific hybrid maple tree differs in characteristics from common maple tree species. These include in having a growth habit characterized by a substantially straight hole formed which conspicuously is an unbranched central leader, scaffold branches which are generally directed and exceedingly narrow when compared to those of other maple species, and attractive foliage which is unusually cut and which is not of the usual contrast in coloration and texture from to bottom surfaces. Also, the new tree is a seedless 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 maple tree, Aceraceae "Dolorosa et Jeromus," as depicted, described and illustrated herein.

Read the full patent: US Plant Patent PP8790 in full — the complete specification, every figure, and the file history.