Burglar screens

Patents Grantslast 30 patents

  • Information Patent Grant

    Conductive frangible grill anti-intrusion device

    • Patent number 4,810,999
    • Issue date Mar 7, 1989
    • George A. Moshier
    • G08 - SIGNALLING
  • Information Patent Grant

    Protective window screen assembly

    • Patent number 4,232,310
    • Issue date Nov 4, 1980
    • Imperial Screen Company, Inc.
    • Clarence P. Wilson
    • B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
  • Information Patent Grant

    1974779

    • Patent number 1,974,779
    • Issue date Sep 25, 1934
    • G08 - SIGNALLING
  • Information Patent Grant

    1824663

    • Patent number 1,824,663
    • Issue date Sep 22, 1931
    • G08 - SIGNALLING
  • Information Patent Grant

    1804663

    • Patent number 1,804,663
    • Issue date May 12, 1931
    • B61 - RAILWAYS
  • Information Patent Grant

    1754360

    • Patent number 1,754,360
    • Issue date Apr 15, 1930
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    1452500

    • Patent number 1,452,500
    • Issue date Apr 24, 1923
    • G08 - SIGNALLING
  • Information Patent Grant

    1252834

    • Patent number 1,252,834
    • Issue date Jan 8, 1918
    • G08 - SIGNALLING
  • Information Patent Grant

    1236381

    • Patent number 1,236,381
    • Issue date Aug 7, 1917
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    1099480

    • Patent number 1,099,480
    • Issue date Jun 9, 1914
    • B32 - LAYERED PRODUCTS
  • Information Patent Grant

    1096526

    • Patent number 1,096,526
    • Issue date May 12, 1914
    • B60 - VEHICLES IN GENERAL
  • Information Patent Grant

    1081884

    • Patent number 1,081,884
    • Issue date Dec 16, 1913
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1060516

    • Patent number 1,060,516
    • Issue date Apr 29, 1913
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    1003234

    • Patent number 1,003,234
    • Issue date Sep 12, 1911
    • G08 - SIGNALLING
  • Information Patent Grant

    976154

    • Patent number 976,154
    • Issue date Nov 22, 1910
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    943368

    • Patent number 943,368
    • Issue date Dec 14, 1909
    • G08 - SIGNALLING
  • Information Patent Grant

    934626

    • Patent number 934,626
    • Issue date Sep 21, 1909
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    934108

    • Patent number 934,108
    • Issue date Sep 14, 1909
    • G08 - SIGNALLING
  • Information Patent Grant

    920123

    • Patent number 920,123
    • Issue date May 4, 1909
    • G08 - SIGNALLING
  • Information Patent Grant

    880020

    • Patent number 880,020
    • Issue date Feb 25, 1908
    • G08 - SIGNALLING
  • Information Patent Grant

    873935

    • Patent number 873,935
    • Issue date Dec 17, 1907
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    695049

    • Patent number 695,049
    • Issue date Mar 11, 1902
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    627006

    • Patent number 627,006
    • Issue date Jun 13, 1899
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    607877

    • Patent number 607,877
    • Issue date Jul 26, 1898
    • E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
  • Information Patent Grant

    545835

    • Patent number 545,835
    • Issue date Sep 3, 1895
    • G08 - SIGNALLING
  • Information Patent Grant

    530975

    • Patent number 530,975
    • Issue date Dec 18, 1894
    • G08 - SIGNALLING
  • Information Patent Grant

    507869

    • Patent number 507,869
    • Issue date Oct 31, 1893
    • G08 - SIGNALLING
  • Information Patent Grant

    480100

    • Patent number 480,100
    • Issue date Aug 2, 1892
    • G08 - SIGNALLING
  • Information Patent Grant

    342709

    • Patent number 342,709
    • Issue date May 25, 1886
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    292807

    • Patent number 292,807
    • Issue date Feb 5, 1884
    • G08 - SIGNALLING

Patents Applicationslast 30 patents