Gas delivery mask

• US D310,431 S
• Filed: 07/24/1987
• Issued: 09/04/1990
• Est. Priority Date: 01/30/1987
• Status: Expired due to Term

• Current Assignee: Lifeline Limited BRAY Road Vale Guernsey Channel Islands
• Original Assignee: Lifeline USA (Lifeline International)
• Inventors: Bellm, Howard G.
• Primary Examiner(s): Word, A. Hugo
• Assistant Examiner(s): McInroy, Ruth
• Application Number:
  US07/077,180
• Time in Patent Office: 1,138 Days
• Field of Search: D29/7-10, D29/12, D29/15-18, 128/205.25, 128/206.12, 128/206.15, 128/206.17, 128/206.19, 128/206.21, 128/206.28, 128/207.17
• US Class Current: D24/110.4
• CPC Class Codes: N/A

Claims

1. The ornamental design for a gas delivery mask, as shown and described.