TREA

Dual stud construction toy block

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Information

  • Patent Grant
  • D420711
  • Patent Number
    D420,711
  • Date Filed
    Monday, December 21, 1998
    25 years ago
  • Date Issued
    Tuesday, February 15, 2000
    24 years ago
  • US Classifications
    Field of Search
    • US
    • D21 484-505
    • D25 113-118
    • 446 85
    • 446 88
    • 446 93-96
    • 446 102-111
    • 446 116-117
    • 446 119-121
    • 446 124-125
    • 446 128
    • 446 476
    • 052 5921
    • 052 5926
    • 052 604
  • International Classifications
    • 2101
    • Term of Grant
      14Years
Information
Abstract
Description
Claims
  • The ornamental design for a dual stud construction toy block, as shown and described.
US Referenced Citations (17)
Number Name Date Kind
D239647 Knudsen Apr 1976
D256606 Hoggard Aug 1980
D354319 Wilson Jan 1995
D373606 Knudsen Sep 1996
1689107 Bradley Oct 1928
1971545 Tompkins Aug 1934
2861388 Favaretto Nov 1958
3162973 Christiansen Dec 1964
3220141 Goss, III Nov 1965
3412502 Riches Nov 1968
3487579 Brettingen Jan 1970
3877170 Bakker Apr 1975
4246718 Chatani Jan 1981
4305221 Chatani Dec 1981
4306373 Chatani et al. Dec 1981
5230195 Sease Jul 1993
5683283 Glynn Nov 1997
Foreign Referenced Citations (7)
Number Date Country
229861 Aug 1960 AUX
0 039 100 Nov 1981 EPX
1150976 Jan 1958 FRX
1180316 Dec 1958 FRX
24 29 491 Jan 1975 DEX
935308 Aug 1963 GBX
1049484 Nov 1966 GBX