Hypodermic injector

• US 2,832,339 A
• Filed: 09/02/1953
• Issued: 04/29/1958
• Est. Priority Date: 09/02/1953
• Status: Expired due to Term

• Current Assignee: David M. Potter, Stanley J. Sarnoff
• Original Assignee: David M. Potter, Stanley J. Sarnoff
• Inventors: Sarnoff, Stanley J., Potter, David M.
• Application Number:
  US03/378,022
• Time in Patent Office: 1,700 Days
• US Class Current: 604/138
• CPC Class Codes: A61M 2005/206 With automatic needle insertion
• CPC Class Codes: A61M 2005/2073 preventing premature release, e.g. by making use of a safety lock
• CPC Class Codes: A61M 5/2033 Spring-loaded one-shot injectors with or without automatic needle insertion multishot dosing syringes A61M5/31525, needle insertion only A61M5/3287
• CPC Class Codes: A61M 5/31511 Piston or piston-rod constructions, e.g. connection of piston with piston-rod A61M5/5066 takes precedence
• CPC Class Codes: A61M 5/3291 Shafts with additional lateral openings
• CPC Class Codes: Y10T 74/11 Tripping mechanism

Claims