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Hollow wall container

  • US 3,339,781 A
  • Filed: 03/22/1965
  • Issued: 09/05/1967
  • Est. Priority Date: 03/22/1965
  • Status: Expired due to Term
First Claim
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1. AN INTEGRAL ONE-PIECE THERMOPLASTIC CONTAINER HAVING MATING PARTS JOINED BY A HINGE INTEGRAL WITH BOTH OF SAID PARTS WITH AT LEAST ONE OF SAID PARTS BEIGN OF HOLLOW DOUBLE-WALL CONSTRUCTION, A FASTENER TONGUE INTEGRAL WITH ONE OF SAID PARTS, SAID TONGUE PROJECTING BEYOND THE SAID PART INTEGRAL THEREWITH AND HAVING LATERALLY PROJECTING EARS ON OPPOSITE SIDES THEREOF, THE OTHER OF SAID PARTS HAVING AN INTEGRAL FLANGE PROJECTING THEREFROM ALONG SAID TONGUE BEYOND THE JUNCTURE THEREOF WITH SAID ONE PART, THE SIDE OF SAID FLANGE OPPOSITE SAID TONGUE HAVING LATERALLY SPACED SHOULDERS UNDERCUT FOR SNAP-FIT ENGAGEMENT WITH SAID EARS WHEN SAID TONGUE IS ROLLED OVER SAID FLANGE.

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