Knot tying teaching material
Description
1. Knot tying teaching material
Teaching tool for educational and demonstrational purposes; it is suitable in the medical field when practicing surgical knot tying techniques but equally useful in any application where one has to learn the basics of how knots are tied or stitches are sewn, such as tying a knot by sliding it down onto a recessed pin in a narrow cylinder, joining two tensioned parallel cords together without rupture by making a continuous seam or tying onto an easy accessible pin.
Claims
The ornamental design for a knot tying teaching material, as shown and described.
Referenced Cited
U.S. Patent Documents
| D398645 | September 22, 1998 | Tsao |
| D450770 | November 20, 2001 | Starkey |
| D452420 | December 25, 2001 | Johnston |
| D538856 | March 20, 2007 | Bradford |
| D553221 | October 16, 2007 | Rustowicz |
| D572095 | July 1, 2008 | Jochum |
| D678411 | March 19, 2013 | Lin |
| D699297 | February 11, 2014 | Bahsoun |
| D740361 | October 6, 2015 | Skelton |
| D785091 | April 25, 2017 | McNally |
| D847269 | April 30, 2019 | Leung |
| D884785 | May 19, 2020 | Wiesner |
Patent History
Patent number: D895009
Type: Grant
Filed: May 12, 2019
Date of Patent: Sep 1, 2020
Inventor: Carl Erik Adam Hager (Bromma)
Primary Examiner: Khawaja Anwar
Application Number: 35/507,523
Type: Grant
Filed: May 12, 2019
Date of Patent: Sep 1, 2020
Inventor: Carl Erik Adam Hager (Bromma)
Primary Examiner: Khawaja Anwar
Application Number: 35/507,523
Classifications
Current U.S. Class:
Teaching Material (D19/59)
