Flat threading rolling die
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Description
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Claims
The ornamental design for a flat threading rolling die, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
2627767 | February 1953 | Batchelder |
2669139 | February 1954 | Finch |
2992573 | July 1961 | Prutton |
D480619 | October 14, 2003 | Koenig, Jr. |
2391467 | March 2013 | EP |
2022014924 | January 2022 | JP |
2087237 | August 1997 | RU |
Patent History
Patent number: D989824
Type: Grant
Filed: Mar 30, 2021
Date of Patent: Jun 20, 2023
Assignee: FORM ROLL TECH CO., LTD. (Yamanashi)
Inventors: Toshinaka Shinbutsu (Ohtsuki), Shuichi Amano (Ohtsuki)
Primary Examiner: Patricia A Palasik
Application Number: 35/513,160
Type: Grant
Filed: Mar 30, 2021
Date of Patent: Jun 20, 2023
Assignee: FORM ROLL TECH CO., LTD. (Yamanashi)
Inventors: Toshinaka Shinbutsu (Ohtsuki), Shuichi Amano (Ohtsuki)
Primary Examiner: Patricia A Palasik
Application Number: 35/513,160
Classifications