Duo-prop propeller

- Sharrow Engineering LLC

Latest Sharrow Engineering LLC Patents:

Skip to: Description  ·  Claims  ·  References Cited  · Patent History  ·  Patent History
Description

FIG. 1 is a perspective view of a duo-prop 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 right side elevation view thereof.

FIG. 5 is a left side elevation view thereof.

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

FIG. 7 is a bottom plan view thereof.

Reference to front, rear, right, left, top, bottom, are merely to indicate how the views relate to one another, and do not indicate how the propeller would be positioned when used.

Claims

I claim the ornamental design for a duo-prop propeller, as shown and described.

Referenced Cited
U.S. Patent Documents
D223218 March 1972 Martens
4802872 February 7, 1989 Stanton
D355252 February 7, 1995 Andersen
5411422 May 2, 1995 Robertson
5890875 April 6, 1999 Silvano
D432621 October 24, 2000 Etschel
D510998 October 25, 2005 Parker
D539413 March 27, 2007 Parker
D560154 January 22, 2008 Aplin, Jr.
D561690 February 12, 2008 Schaap
D579102 October 21, 2008 Leung
D745448 December 15, 2015 Hawkins
D799688 October 10, 2017 Wang
D806225 December 26, 2017 Chang
D870260 December 17, 2019 Teramoto
10569851 February 25, 2020 DeJesus
D896363 September 15, 2020 Wang
D903573 December 1, 2020 Shima
D974267 January 3, 2023 Sharrow
D974268 January 3, 2023 Sharrow
D974269 January 3, 2023 Sharrow
D974270 January 3, 2023 Sharrow
20080096446 April 24, 2008 Lin
20140273673 September 18, 2014 Tsai
20170267323 September 21, 2017 Sharrow
20220340247 October 27, 2022 Sharrow
Foreign Patent Documents
110305685 April 2021 TW
20170205680 November 2017 WO
Other references
  • Facebook.com, Sharrow Marine CX-1 Duo Propeller at IBEX, published Sep. 28, 2021 [retrieved Mar. 16, 2023]. Retrieved from the internet<https://www.facebook.com/SharrowMarine/posts/871727786816928/?comment_id=871764706813236> (Year: 2021).
  • Boatingmag.com, Marine Power Innovation Awards 2022 Sharrow Marine Propellers, published Feb. 7, 2023 [retrieved Mar. 16, 2023]. Retrieved from the internet<https://www.boatingmag.com/boats/marine-power-innovation-awards-2022-sharrow-marine-propellers/> (Year: 2022).
  • ebay.com, Volvo Penta C2 3588222 Duo Prop Stainless Steel Propeller, published Feb. 15, 2023 [retrieved Mar. 16, 2023]. Retrieved from the internet<https://www.ebay.com/itm/163487448444?hash=item26109c7d7c:g:70AAAOSwqLlf-Plg> (Year: 2023).
  • Office Action dated Mar. 29, 2022 in Taiwan Application No. 110305685.
Patent History
Patent number: D988967
Type: Grant
Filed: Jun 22, 2021
Date of Patent: Jun 13, 2023
Assignee: Sharrow Engineering LLC (Philadelphia, PA)
Inventor: Gregory C. Sharrow (Grosse Pointe Park, MI)
Primary Examiner: Joseph Kukella
Assistant Examiner: Lavon M. Amerson
Application Number: 29/796,030
Classifications
Current U.S. Class: Propeller (D12/214)