3148444

Information

• Patent Grant
• 3148444

• References
• Source

• Patent Number

  3,148,444

• Date Filed

  Not available

• Date Issued

  Tuesday, September 15, 1964
  60 years ago

• CPC

  • E04B5/326 - with hollow filling elements
  • Y10S249/02 - Paper core
  • Y10T29/49879 - Spaced wall tube or receptacle
  • Y10T29/49922 - by bending over projecting prongs

• US Classifications

  • 029 - Metal working
  • 249 - Static molds