Powder sifter
Description
The dash-dash broken lines illustrate portions of the powder sifter that form no part of the claimed design. The dot-dash broken lines represents boundaries of the claimed design and form no part of the claimed design.
Claims
The ornamental design for a powder sifter, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
| 2163766 | June 1939 | Spencer |
| 2369396 | February 1945 | Higginbotham |
| 2721779 | October 1955 | Fulkerson |
| D250196 | November 7, 1978 | Caccioli |
| 4300318 | November 17, 1981 | Brown |
| D273195 | March 27, 1984 | Ferdinand |
| 4603925 | August 5, 1986 | Cuevas-Cumming |
| D286643 | November 11, 1986 | Carney |
| D303439 | September 12, 1989 | Savio |
| 5143102 | September 1, 1992 | Blaul |
| D415923 | November 2, 1999 | Hermansson |
| 6878046 | April 12, 2005 | Publ |
| D627592 | November 23, 2010 | Wen |
| D844377 | April 2, 2019 | Kacalek |
| D882651 | April 28, 2020 | Moser |
| D907077 | January 5, 2021 | Gjovik |
| 20020168924 | November 14, 2002 | Visaisouk |
| 20070034613 | February 15, 2007 | Lundberg |
| 20080185365 | August 7, 2008 | Yang |
| 20080278041 | November 13, 2008 | Lloyd |
| 20080315738 | December 25, 2008 | Tan |
| 20160001420 | January 7, 2016 | Robinson |
| 20160023491 | January 28, 2016 | Vellutato, Jr. |
| 20170276395 | September 28, 2017 | Nyhof |
| 20180164147 | June 14, 2018 | Liebsch |
| 20190134669 | May 9, 2019 | Mack |
| 20200254689 | August 13, 2020 | Gjovik |
- Formlabs, Fuse Sift “All-In-One Powder Recovery for the Fuse 1”, (site visited May 6, 2021), Formlabs.com, URL:<https://formlabs.com/post-processing/fuse-sift/> (Year: 2021).
- Sinterit, Powder Sieve, (site visited May 7, 2021), Sinterit.com, URL:<https://www.sinterit.com/powder-sieve/> (Year: 2021).
- Reches et al., Powder Sifter, U.S. Appl. No. 29/690,390, filed May 7, 2019.
Patent History
Patent number: D941892
Type: Grant
Filed: Jun 23, 2020
Date of Patent: Jan 25, 2022
Assignee: Formlabs, Inc. (Somerville, MA)
Inventors: Yoav Reches (Cambridge, MA), John E. Ouchterlony (Cambridge, MA), Brian Chan (Cambridge, MA), Kat Ely (Somerville, MA), Adam Lebovitz (Cambridge, MA)
Primary Examiner: Calvin E Vansant
Assistant Examiner: Mark T. Philipps
Application Number: 29/739,152
Type: Grant
Filed: Jun 23, 2020
Date of Patent: Jan 25, 2022
Assignee: Formlabs, Inc. (Somerville, MA)
Inventors: Yoav Reches (Cambridge, MA), John E. Ouchterlony (Cambridge, MA), Brian Chan (Cambridge, MA), Kat Ely (Somerville, MA), Adam Lebovitz (Cambridge, MA)
Primary Examiner: Calvin E Vansant
Assistant Examiner: Mark T. Philipps
Application Number: 29/739,152
Classifications
Current U.S. Class:
Material Working, Abrading, Or Founding Machinery (D15/122);
Miscellaneous (D15/199)