TREA

Toilet tank chemical dispenser

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Information

  • Patent Grant
  • D345196
  • Patent Number
    D345,196
  • Date Filed
    Tuesday, September 1, 1992
    32 years ago
  • Date Issued
    Tuesday, March 15, 1994
    30 years ago
  • US Classifications
    Field of Search
    • US
    • 004 223-224
    • 004 2271-2281
    • 004 231
    • 422 264 B
    • 422 265
    • 222 54
    • 222 56
    • 222 67
    • 222 310
    • 239 154
    • 239 310
    • 239 317-318
    • 239 302
    • 239 375
    • 239 526
    • 239 583
    • 210 169
    • 210 205
    • 210 2421
    • 210 H162
    • 210 193
    • 210 1981
    • D23 207-208
    • D23 213
    • D23 200
    • D23 366
    • D23 368
    • Term of Grant
      14Years
Information
Abstract
Description
Claims
  • The ornamental design for a toilet tank chemical dispenser, as shown and described.
Priority Claims (1)
Number Date Country Kind
2022820 May 1992 GBX
US Referenced Citations (8)
Number Name Date Kind
D276646 Ronayne Dec 1984
D284506 Gutknecht Jul 1986
D284693 Royayne Jul 1986
D307625 King et al. May 1990
D321320 Halm Nov 1991
4451941 Gray Jun 1984
4707866 von Philipp et al. Nov 1987
4813084 Buecheler et al. Mar 1989
Foreign Referenced Citations (1)
Number Date Country
89304435.4 Mar 0589 EPX
Non-Patent Literature Citations (5)
Entry
Photographs (Series A-D) illustrating the Null-Null W. C. Wasserkasten Automat. (1990).
Photographs (Series A-C) illustrating the "Biofresh" from Hungary. (date unknown).
Label for "Blue Flush" from Racasan Limited, Manchester, England. (1986).
Label for "WC Frisch" from Wasserkasten-Automat, Thompson-Siegel GmbH, Dusseldorf, Germany. (date unknown).
Label for "Trident" Starter Set Automatic Toilet Bowl Cleaner, Trident Products Inc., So. San Francisco, Calif. 94080. (date unknown).