Hardness tester
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Description
The broken lines depict unclaimed parts of the hardness tester, and thus form no part of the claimed design.
Claims
The ornamental design for a hardness tester, as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
4442705 | April 17, 1984 | Lang |
D283599 | April 29, 1986 | Biddle, Jr. et al. |
D356515 | March 21, 1995 | Fukumoto et al. |
D394015 | May 5, 1998 | Kellstedt, Jr. et al. |
D704582 | May 13, 2014 | Muraoka et al. |
D719039 | December 9, 2014 | Chang |
D731904 | June 16, 2015 | Stohr |
D783424 | April 11, 2017 | Matsumiya |
20140182364 | July 3, 2014 | Koshimizu |
20170248415 | August 31, 2017 | Matsumiya |
- “Rockwell Hardness Testing Machines, HR-300/400/500 Series,” Mitutoyo, Bulletin No. 2025(3), Jun. 2017, pp. 1-8.
Patent History
Patent number: D848883
Type: Grant
Filed: Jan 11, 2018
Date of Patent: May 21, 2019
Assignee: MITUTOYO CORPORATION (Kawasaki)
Inventors: Sadayuki Matsumiya (Sagamihara), Yoshiro Asano (Tokyo), Masaru Kawazoe (Kure), Fumihiko Koshimizu (Zama), Shigeru Ohtani (Kawasaki), Yu Sugai (Hadano)
Primary Examiner: Antoine Duval Davis
Application Number: 29/633,004
Type: Grant
Filed: Jan 11, 2018
Date of Patent: May 21, 2019
Assignee: MITUTOYO CORPORATION (Kawasaki)
Inventors: Sadayuki Matsumiya (Sagamihara), Yoshiro Asano (Tokyo), Masaru Kawazoe (Kure), Fumihiko Koshimizu (Zama), Shigeru Ohtani (Kawasaki), Yu Sugai (Hadano)
Primary Examiner: Antoine Duval Davis
Application Number: 29/633,004
Classifications