Duo-propeller

Information

  • Patent Grant
  • D1084031
  • Patent Number
    D1,084,031
  • Date Filed
    Wednesday, April 3, 2024
    a year ago
  • Date Issued
    Tuesday, July 15, 2025
    6 months ago
  • Inventors
    • Sharrow; Gregory C. (Grosse Pointe Park, MI, US)
  • Original Assignees
  • Examiners
    • Aman; Ania
    Agents
    • Barnes & Thornburg
    • Shipe; Steven D.
Abstract
Description


FIG. 1 is a perspective view of a duo-propeller, showing my new design.



FIG. 2 is a front elevation view thereof.



FIG. 3 is a rear elevation view thereof.



FIG. 4 is a left side elevation view thereof.



FIG. 5 is a right side elevation view thereof.



FIG. 6 is a top plan view thereof; and,



FIG. 7 is a bottom plan view thereof.


The broken lines in FIGS. 1-7 represent portions of the duo-propeller that form no part of the claimed design.


Claims
  • The ornamental design for a duo-propeller, as shown and described.
US Referenced Citations (29)
Number Name Date Kind
1868113 Ljungstrom Jul 1932 A
2045383 Faber Jun 1936 A
3485462 Spence Dec 1969 A
D223218 Martens Mar 1972 S
4802872 Stanton Feb 1989 A
5890875 Silvano Apr 1999 A
6099256 Silvano Aug 2000 A
D432621 Etschel Oct 2000 S
D539413 Parker Mar 2007 S
D560154 Aplin Jan 2008 S
D561690 Schaap Feb 2008 S
D728442 Hawkins May 2015 S
D745440 Hawkins Dec 2015 S
D745448 Hawkins Dec 2015 S
D903573 Shima Dec 2020 S
D974268 Sharrow Jan 2023 S
D974269 Sharrow Jan 2023 S
D988967 Sharrow Jun 2023 S
D1013605 Sharrow Feb 2024 S
20040067138 Yoshida Apr 2004 A1
20110299991 Shpadi et al. Dec 2011 A1
20120056041 Rhee Mar 2012 A1
20120288374 Avellan et al. Nov 2012 A1
20140161622 Sharrow Jun 2014 A1
20170207323 Sharrow Jul 2017 A1
20170267323 Sharrow Sep 2017 A1
20180237122 Sharrow Aug 2018 A1
20190127035 McKinny, Jr. May 2019 A1
20220340247 Sharrow Oct 2022 A1
Foreign Referenced Citations (1)
Number Date Country
2017205680 Nov 2017 WO
Non-Patent Literature Citations (2)
Entry
Sharrow MX-1: This toroidal boat propeller could be top of the props; May 28, 2020; Internet URL: https://www.mby.com/gear/sharrow-mx-1-tipless-propeller-110120.
Office Action issued on Mar. 29, 2022 in Taiwan Application No. 110305685.
Continuations (1)
Number Date Country
Parent 29779895 Apr 2021 US
Child 29935667 US