US PATENT SUBCLASS 47 / 57.5
INJECTION
Current as of: June, 1999
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DEFINITION
Classification: 47/57.5
Devices for injecting materials into living plants, e.g., trees, and injection processes which are peculiar to the treatment of living plants.
(1) Note. Many of the patents in this subclass are for the injection of coloring or preserving material into trees to produce colored or preserved timber.
(2) Note. See this class, subclass 48.5, for devices designed to be buried in the soil for applying water, fertilizer, or the like.
(3) Note. See Class 8, Bleaching and Dyeing; Fluid Treatment and Chemical Modification of Textiles and Fibers, subclass 402, for processes of injecting wood with coloring material and Class 427, Coating Processes, appropriate subclasses, especially subclass 291, for coating or impregnating wood other than standing timber.
(5) Note. See Class 111, subclasses 118+ for devices for impregnating the soil with liquid or gas, the devices having earthworking means.
