Dry ice cooling jacket
Patent 3950789 Issued on April 20, 1976. Estimated Expiration Date: 
April 20, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
April 20, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3296819 3476102 3537108 3628537 3643463 InventorsAssigneeApplicationNo. 598079 filed on 07/22/1975US Classes:2/93, Coats2/250, Article-retaining feature2/81, Heat resistant2/97, Linings224/901.8, Connection between support and article or receiver607/108, For specific external body area62/530Envelope typeExaminersPrimary: Schroeder, Werner H.Assistant: Cohen, Moshe I. AbstractA cooling jacket provides personal cooling for the wearer by convection as cold carbon dioxide gas circulates within the space between the inside surface of the jacket and the wearer's body. Dry ice is held in pockets inside the jacket, aand each pocket is vented to permit the gas to diffuse through the pocket into the space. The bottom of the jacket is provided with a waist band which closes the space at the bottom and restrains the escape of the relatively heavy carbon dioxide gas. | |
