Life support system knife
United States Patent D302839

Crain, Jack W. (Rte. 2, Box 221F, Weatherford, TX, 76086)
Application Number:
Publication Date:
Filing Date:
Primary Class:
Field of Search:
D3/102, D7/73, D7/74, D7/150, D7/151, D22/118, 30/337, 30/340, 30/342, 30/346, 30/343, 224/226, 224/229, 224/230, 224/232
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US Patent References:
D287042Knife handleDecember, 1986HoffmanD22/118
3269009Releasable retention structure for scabbard-knife combinationAugust, 1966Eastman

Other References:
Knives and Knifemakers, .COPYRGT.1973 Sidlathom, p. 51, 1st Knife top of page.
The National Knife Magazine, Dec. 1985, "The Knives of Commando", by Jim Williamson.
Brochure: Knives as Seen in the Movie "Commando"--The Life Support System, Jack W. Crain.
Primary Examiner:
Word, Hugo A.
Assistant Examiner:
Clark, Doris
Attorney, Agent or Firm:
Jones, Tullar & Cooper
1. The ornamental design for a life support system knife, as shown.


FIG. 1 is a perspective view of a life support system knife showing my new design;

FIG. 2 is a side elevational view thereof;

FIG. 3 is a right hand end elevational view of the knife of FIG. 1;

FIG. 4 is a top plan view of the knife of FIG. 1; and

FIG. 5 is a bottom plan view of the knife of FIG. 1.