Electric lanterns or torches

• US 3,030,497 A
• Filed: 06/22/1960
• Issued: 04/17/1962
• Est. Priority Date: 12/08/1959
• Status: Expired due to Term

• Current Assignee: Wing G. Cheng
• Original Assignee: Wing G. Cheng
• Inventors: Cheng, Wing G.
• Application Number:
  US04/037,934
• Time in Patent Office: 664 Days
• US Class Current: 362/184
• CPC Class Codes: F21L 2/00 Systems of electric lighting devices systems employing both electric and non-electric light sources or exchangeable light sources F21L27/00
• CPC Class Codes: F21L 4/02 characterised by the provision of two or more light sources
• CPC Class Codes: F21L 4/04 characterised by the provision of a light source housing portion adjustably fixed to the remainder of the device
• CPC Class Codes: F21V 21/26 Pivoted arms

Claims