Sifting litter box
Description
The broken lines depict environmental subject matter, are for illustrative purposes only, and form no part of the claimed design.
Claims
The ornamental design for a sifting litter box, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
Other references
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4505226 | March 19, 1985 | Carlson |
4615300 | October 7, 1986 | McDonough |
5325815 | July 5, 1994 | Gumpesberger |
5507248 | April 16, 1996 | Gabbert |
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5598811 | February 4, 1997 | Merchant |
D378451 | March 11, 1997 | Schmidt |
5797346 | August 25, 1998 | Lewis |
6941894 | September 13, 2005 | D'Anielo |
D782756 | March 28, 2017 | Veness |
D783907 | April 11, 2017 | Ohlman |
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2173510 | October 1997 | CA |
- https://luuup.com/?gclid=EAlalQobChMI28Do6J_H2wIVyiSBCh21WwIUEAAYASAAEgl3v_D_BwE; Luuup Nesting and Sifting Litter Boxes; cannot find a date on website.
Patent History
Patent number: D839498
Type: Grant
Filed: Jan 5, 2017
Date of Patent: Jan 29, 2019
Inventors: Nicholas Petty (Toronto), Ralph P. Gumpesberger (London)
Primary Examiner: Cathy Anne MacCormac
Application Number: 29/589,932
Type: Grant
Filed: Jan 5, 2017
Date of Patent: Jan 29, 2019
Inventors: Nicholas Petty (Toronto), Ralph P. Gumpesberger (London)
Primary Examiner: Cathy Anne MacCormac
Application Number: 29/589,932
Classifications
Current U.S. Class:
Waste Collector (e.g., Litter Box, Etc.) (D30/161)