The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 16, 2004
Filed:
Jan. 10, 2003
Bruce Francis, Aiken, SC (US);
William C. Carlson, Olympia, WA (US);
Weyerhaeuser Company, Federal Way, WA (US);
Abstract
The present invention provides methods for pruning the roots of tree seedlings. The methods of the invention include: (a) a first root pruning step wherein the roots of a majority of members of a population of tree seedlings are laterally pruned; (b) a second root pruning step, occurring after the first root pruning step, wherein the roots of the majority of members of the population of tree seedlings are laterally pruned; wherein: (i) the population of tree seedlings is arranged as at least two adjacent pairs of rows of seedlings; and (ii) the roots of the majority of the seedlings are pruned shorter during the first pruning step than during the second pruning step.