Patents by Inventor Plaeger Marius

Plaeger Marius has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Glass for television display cathode-ray tubes
    Patent number: 4089693
    Abstract: Glass for the envelope of television display cathode-ray tubes, particularly for the face plate of a colour display tube and having a composition in % by weight within the range limited as follows:______________________________________ SiO.sub.2 54-69 Na.sub.2 O 6-10 [Na.sub.2 O] + [K.sub.2 O] combined 14-20 K.sub.2 O 5-10 CaO 0- 4 MgO 0-2.5 Al.sub.2 O.sub.3 0- 6 [Al.sub.2 O.sub.3 ] + [ZrO.sub.2 ] < 6 ZrO.sub.2 0- 6 BaO 8-18 2 [ZrO.sub.2 ] + [BaO] + [ZnO] + 4 [Sb.sub.2 O.sub.3 ] > 20 ZnO 0- 5 [ZrO.sub.2 ] + [ZnO] + [Sb.sub.2 O.sub.3 ] > 3 CeO.sub.2 0.05-0.3 Sb.sub.2 O.sub.3 0- 3 [Sb.sub.2 O.sub.3 ] + [As.sub.2 O.sub.3 ] .gtoreq. 0.3 As.sub.2 O.sub.3 0-0.
    Type: Grant
    Filed: June 6, 1974
    Date of Patent: May 16, 1978
    Assignee: U.S. Philips Corporation
    Inventors: Coenraad Maria La Grouw, Plaeger Marius