Methods of manufacturing snowmobile skis

Details Methods of manufacturing snowmobile skis Methods of manufacturing snowmobile skis

2007-12-21

2010-11-30

Bryant, David P (Department: 3726)

Metal working

Method of mechanical manufacture

Structural member making

C280S028000, C280S601000, C280S602000, C280S607000, C280S608000

Reexamination Certificate

active

07841089

ABSTRACT:
A snowmobile ski with a pair of outboard keels and laterally projecting, upwardly slanting, lateral wings attached proximate the outboard keels is disclosed. A ski of this structure has improved flotation and resistance to side slippage in turns.

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Letter dated Apr. 13, 2007, from Kevin W. Metheny, President/CEO of Ultimate Sports Inc. (USI) to Bradley B. Jensen of TraskBritt, regarding Infringement Analysis of USI Snowmobile Skis in relation to Starting Line Products Patents 6,955,236; 6,991,056 and Patent Pending Applications (3 pages).
USI Ski Cross Sections from 1988 to 2007 (10 pages).
Additional Facts Relating to Materials Submitted by Ultimate Sports Inc. (“USI”) (1 page).

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