Yielding plunger

Patents Grantslast 30 patents

  • Information Patent Grant

    Press forming process and apparatus for plastic foam and plastic fo...

    • Patent number 4,885,317
    • Issue date Dec 5, 1989
    • Northrop Corporation
    • Joe K. Thein
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3397429

    • Patent number 3,397,429
    • Issue date Aug 20, 1968
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    3130450

    • Patent number 3,130,450
    • Issue date Apr 28, 1964
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    2869174

    • Patent number 2,869,174
    • Issue date Jan 20, 1959
    • B30 - PRESSES
  • Information Patent Grant

    2822574

    • Patent number 2,822,574
    • Issue date Feb 11, 1958
    • D01 - NATURAL OR ARTIFICIAL THREADS OR FIBRES SPINNING
  • Information Patent Grant

    2572953

    • Patent number 2,572,953
    • Issue date Oct 30, 1951
    • B30 - PRESSES
  • Information Patent Grant

    2569226

    • Patent number 2,569,226
    • Issue date Sep 25, 1951
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    2005260

    • Patent number 2,005,260
    • Issue date Jun 18, 1935
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    1977699

    • Patent number 1,977,699
    • Issue date Oct 23, 1934
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1936494

    • Patent number 1,936,494
    • Issue date Nov 21, 1933
    • F42 - AMMUNITION BLASTING
  • Information Patent Grant

    1738046

    • Patent number 1,738,046
    • Issue date Dec 3, 1929
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1695327

    • Patent number 1,695,327
    • Issue date Dec 18, 1928
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    1466730

    • Patent number 1,466,730
    • Issue date Sep 4, 1923
    • B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
  • Information Patent Grant

    1041129

    • Patent number 1,041,129
    • Issue date Oct 15, 1912
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    987124

    • Patent number 987,124
    • Issue date Mar 21, 1911
    • B30 - PRESSES
  • Information Patent Grant

    976530

    • Patent number 976,530
    • Issue date Nov 22, 1910
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    850323

    • Patent number 850,323
    • Issue date Apr 16, 1907
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    843563

    • Patent number 843,563
    • Issue date Feb 5, 1907
    • C21 - METALLURGY OF IRON
  • Information Patent Grant

    816374

    • Patent number 816,374
    • Issue date Mar 27, 1906
    • A21 - BAKING EDIBLE DOUGHS
  • Information Patent Grant

    815647

    • Patent number 815,647
    • Issue date Mar 20, 1906
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    805294

    • Patent number 805,294
    • Issue date Nov 21, 1905
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    784154

    • Patent number 784,154
    • Issue date Mar 7, 1905
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    755818

    • Patent number 755,818
    • Issue date Mar 29, 1904
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    734531

    • Patent number 734,531
    • Issue date Jul 28, 1903
    • B30 - PRESSES
  • Information Patent Grant

    647822

    • Patent number 647,822
    • Issue date Apr 17, 1900
    • B30 - PRESSES
  • Information Patent Grant

    551741

    • Patent number 551,741
    • Issue date Dec 17, 1895
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    532500

    • Patent number 532,500
    • Issue date Jan 15, 1895
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    523430

    • Patent number 523,430
    • Issue date Jul 24, 1894
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    500510

    • Patent number 500,510
    • Issue date Jun 27, 1893
    • B28 - WORKING CEMENT, CLAY, OR STONE
  • Information Patent Grant

    439158

    • Patent number 439,158
    • Issue date Oct 28, 1890
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL