TREA

Conical filter

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Information

  • Patent Grant
  • D428128
  • Patent Number
    D428,128
  • Date Filed
    Thursday, April 30, 1998
    26 years ago
  • Date Issued
    Tuesday, July 11, 2000
    24 years ago
Information
Abstract
Description
Claims
  • The ornamental design for a conical filter, as shown and described.
US Referenced Citations (23)
Number Name Date Kind
D342990 Jaroszcyk Jan 1994
1639133 Greene Aug 1927
2552615 Baltzer May 1951
2558185 Leisen Jun 1951
3112184 Hollenbach Nov 1963
3738088 Colosimo Jun 1973
3807150 Maracle Apr 1974
4039457 Schacht et al. Aug 1977
4157902 Tokar Jun 1979
4199387 Hladik Apr 1980
4430223 Miyakawa et al. Feb 1984
4439321 Taki et al. Mar 1984
4589983 Wydevan May 1986
4782912 Wandless Nov 1988
4925561 Ishii et al. May 1990
4936413 Lee Jun 1990
5106397 Jaroszczyk et al. Apr 1992
5125940 Stanhope et al. Jun 1992
5320657 Adams Jun 1994
5458666 Miyakata Oct 1995
5522909 Haggard Jun 1996
5549722 Zemaitis et al. Aug 1996
5549724 Mochida Aug 1996
Foreign Referenced Citations (1)
Number Date Country
703823 Feb 1954 GBX
Divisions (1)
Number Date Country
Parent 053683 Apr 1996