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Class Information
Number: 152/209.18
Name: Resilient tires and wheels > Tires, resilient > Anti-skid devices > Tread > Having groove or sipe with specified dimension or structure therewithin
Description: Tread having recesses identified as grooves, incisions, channels, calfs, narrow slits, cuts, or kerfs with specified dimensions (e.g., width, wall angle, depth, etc.) or characteristics of within-groove structure.


Sub-classes under this class:

Class Number Class Name Patents
152/209.23 Both walls inclined in same direction 83
152/209.24 Having angle of inclination of one wall different from that of opposite wall 90
152/209.26 Having circumferential groove width at least 10% per cent of tread width 74
152/209.27 Having continuous circumferential narrow width groove (i.e., less than 5mm.) 107
152/209.25 Having grooves or sipes with different specified depths 42
152/209.22 Protrusion bridging between walls (e.g., tie bar, etc.) 148
152/209.19 Protrusion from bottom and spaced from both walls (e.g., pebble ejector, etc.) 57
152/209.21 Protrusion from wall and spaced from the opposite wall 115


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
7604030 Pneumatic tire with tread having rib shaped land section, lug grooves and sipes Oct. 20, 2009
7597127 Tire with tread including circumferential grooves having generally sinusoidal contour Oct. 6, 2009
7562683 Pneumatic tire with tread having blocks and bridge portions Jul. 21, 2009
7559348 Tire with rubber tread of circumferential zones with graduated physical properties Jul. 14, 2009
7546861 Tire with tread having crossed configuration sipe Jun. 16, 2009
7543616 Heavy duty tire with tread portion having three longitudinal main grooves Jun. 9, 2009
7506676 Pneumatic tire with tread having V-shaped transverse grooves Mar. 24, 2009
7500500 Pneumatic tire for use on iced and snowed road surfaces Mar. 10, 2009
7484542 Tire tread with sipes having tie bars Feb. 3, 2009
7484543 Tire with tread having continuous rib Feb. 3, 2009
7481257 Pneumatic tire and tire mold Jan. 27, 2009
7469731 Heavy-duty tire having ground-contact surface shape Dec. 30, 2008
7464738 Tyre for a vehicle wheel including zigzag circumferential grooves and blind transverse cuts Dec. 16, 2008
7438100 Pneumatic tire for ice-bound or snow-covered road Oct. 21, 2008
7416004 Pneumatic tire with tread including blocks having open and closed sipes Aug. 26, 2008
7404423 Pneumatic tire with tread including blocks having approximately equal aspect ratios Jul. 29, 2008
7392832 Pneumatic tire having tread blocks with skewed walls Jul. 1, 2008
7377300 Elastic tire for measuring the grip of a vehicle equipped therewith on a ground May. 27, 2008
7360568 Tire having narrowing sipes Apr. 22, 2008
7350552 Directional tread having incisions of varying inclination Apr. 1, 2008
7347238 Pneumatic tire with tread including chamfer portions Mar. 25, 2008
7347239 Tire noise reducing system Mar. 25, 2008
7341082 Shoulder ribs for pneumatic tires Mar. 11, 2008
7341083 Pneumatic radial tire with tread having blocks provided with sipes Mar. 11, 2008
7334618 Pneumatic tire with tread having cap layer and spaced apart base layers Feb. 26, 2008
7322391 Vehicle pneumatic tire having truncated groove Jan. 29, 2008
7322390 Pneumatic tire having tread with blocks having obtuse angle corner portions Jan. 29, 2008
7311128 Tread having tread pattern elements formed of at least two rubber mixes Dec. 25, 2007
7311127 Pneumatic tire with tread having sipes Dec. 25, 2007
7306019 Pneumatic tire including toriodally continuous cells and method of producing same Dec. 11, 2007
7290578 Tire tread having a tread block with an undercut design Nov. 6, 2007
7281555 Off-the-road tire Oct. 16, 2007
7280951 Method of making finite element model of tire having fine groove Oct. 9, 2007
7275573 Radial passenger tire with improved tread contour Oct. 2, 2007
7270163 Tyre for a vehicle wheel including specific tread patterns Sep. 18, 2007
7246644 Tyre for a vehicle wheel including specific tread patterns Jul. 24, 2007
7237588 Pneumatic tire including zigzag sipes Jul. 3, 2007
7234495 Underground mine tire Jun. 26, 2007
7234497 Tyre for motorcycle Jun. 26, 2007
7213624 Noise damper and pneumatic tire with compensation tread groove May. 8, 2007
7207364 Radial tire with tread pattern having four or five circumferential ribs Apr. 24, 2007
7208110 Regroovable tread and processes for obtaining such Apr. 24, 2007
7204281 Studless tire with tread having circumferential portions, blocks and V shaped sipes Apr. 17, 2007
7188651 Pneumatic tire with tread having cap layer and base layer Mar. 13, 2007
7178570 Pneumatic tire including main and auxiliary oblique grooves in axially inner region of tread Feb. 20, 2007
7172001 Pneumatic tire with short fibers and sipes having zigzag part and producing method thereof Feb. 6, 2007
7143798 Pneumatic tire having tread with axially adjacent block chamfer and rib chamfer Dec. 5, 2006
7137424 Tire used in winter having pair of rib portions and central vertical groove with saw-tooth shape Nov. 21, 2006
7131475 High and medium performance tire for vehicles Nov. 7, 2006
7128799 Method of manufacturing precured tread with reflective grooves Oct. 31, 2006

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