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Class 152/160 - Plungers


Subclass of Class 152 - Resilient tires and wheels
Definition: Independent tread elements project through a rigid element
No. of patents: 1
Last issue date: 10/28/1986


NumberTitleIssue Date
4619301Spike tire
A spike tire for a vehicle and which includes a pin receptacle hole formed on the tread surface of the tire; a spike pin retractably protrudable from the pin receptacle hole; a biasing mechanism for continuously urging the spike pin to protrude from the p... 		10/28/1986
 
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