TREA

Control knob for chair tilting mechanism

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Information

  • Patent Grant
  • D328559
  • Patent Number
    D328,559
  • Date Filed
    Wednesday, April 24, 1991
    34 years ago
  • Date Issued
    Tuesday, August 11, 1992
    33 years ago
  • US Classifications
    Field of Search
    • US
    • D08 310-312
    • D08 300
    • D23 250
    • D23 254
    • 016 110 R
    • 016 121
    • Term of Grant
      14Years
Information
Abstract
Description
Claims
  • The ornamental design for a control knob for chair tilting mechanism, as shown and described.
US Referenced Citations (11)
Number Name Date Kind
D111881 Hoover Oct 1938
D126506 Derry Apr 1941
D179942 Holland Mar 1957
D195508 McCabe Jun 1963
D227568 Thorp Jul 1973
D231317 Ludwick Apr 1974
D300652 Kohlen, Jr. et al. Apr 1989
D300770 Kohler, Jr. et al. Apr 1989
D314904 Trinkwalder Feb 1991
4616673 Bondar Oct 1986
4842009 Reback Jun 1989
Non-Patent Literature Citations (2)
Entry
Dimco Cat. 66; p. 10; Knob 124.
Home Hardware Cat.; p. 14, Knob 4911.