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WORKING STONE OR STONE-LIKE MATERIALS
Informative references
Attention is drawn to the following places, which may be of interest for search:
Working brittle material by laser beam
Working by grinding or polishing
Shaping clay or other ceramic compositions, slag, or mixtures containing cementitious material, e.g. plaster
Forming contours for artistic purposes, sculpturing
Glass manufacture, shaping, or supplementary processes
After-treatment of mortars, concrete, artificial stone or ceramics; treatment of natural stone
Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
Machinery for, or methods of, mining or quarrying
Processes or apparatus adapted for the manufacture or treatment of semiconductor devices
Working stone or stone-like materials, e.g. brick, concrete {or glass} , not provided for elsewhere; machines, devices, tools therefor (fine working of gems, jewels, crystals B28D 5/00; working by grinding or polishing B24; devices or means for dressing or conditioning abrasive surfaces B24B 53/00)
References relevant to classification in this group
This subclass/group does not cover:
Working by grinding or polishing
Portable percussive machines or tools
Rotary drilling machines in general

Examples of places where the subject matter of this main group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Fine working of gems, jewels, crystals
Drill bits for earth or rock drilling
Rotary drilling machines for mining or quarrying
Informative references
Attention is drawn to the following places, which may be of interest for search:
Meat or bone saws
Surgical saws
Saws for dentistry
Sawing in general, sawing metal
Sawing wood or similar material
Grinders for cutting-off
Grinding edges of lenses
Bits for picks or pick-holders for mining or quarrying
Forming contours for artistic purposes, sculpturing
Dressing mill discs or rollers (dressing the tools of sawing machines or sawing devices B23D 63/00; treating the cutting members of cutting machines to facilitate cutting B26D 7/08)
References relevant to classification in this subclass/group
This subclass/group does not cover:
Dressing the tools of sawing machines or sawing devices
Treating the cutting members of cutting machines to facilitate cutting
Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor (working by grinding or polishing B24; for artistic purposes B44B)
References relevant to classification in this subclass/group
This subclass/group does not cover:
Devices for removing chips fitted to machine tools in general
Grinding; Polishing
Fine working of gems, jewels, crystals for artistic purposes
Multi-step processes for fine working semiconductor material
Informative references
Attention is drawn to the following places, which may be of interest for search:
Processes or apparatus adapted for the manufacture or treatment of semiconductor devices
Working brittle material by laser beam
Accessories specially adapted for use with machines or devices of the preceding groups { (B28D 5/0058 takes precedence) }
References relevant to classification in this subclass/group
This subclass/group does not cover:
Devices for removing chips fitted to machine tools in general
Sawing stone with a circular saw blade or disc with the work mounted on a carriage

Examples of places where the subject matter of this main group is covered when specially adapted, used for a particular purpose, or incorporated in a larger system:

Breaking gems, jewels, crystals by bringing the workpiece into contact with a suitably shaped rigid body which remains stationary during breaking
Means for supporting or holding work during breaking of gems, jewels, crystals
Accessories specially adapted for use with machines for fine working of gems, jewels, crystals
This page is owned by Office of Patent Classification.
Last Modified: 10/11/2013