Protective relay
Description
The broken lines in the drawings illustrate portions of the protective relay that form no part of the claimed design.
Claims
The ornamental design for a protective relay, substantially as shown and described.
Referenced Cited
U.S. Patent Documents
Other references
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- TDWorld, Date: Oct. 11, 2021, [online], [site visited Dec. 19, 2022]. Available from internet, URL: https://www.tdworld.com/test-and-measurement/article/21178022/schweitzer-engineering-laboratories-inc-sel-sel-releases-sel851-feeder-protection-relay (Year: 2021).
Patent History
Patent number: D1073627
Type: Grant
Filed: Aug 31, 2021
Date of Patent: May 6, 2025
Assignee: Schweitzer Engineering Laboratories, Inc. (Pullman, WA)
Inventors: Joshua E. Hughes (Pullman, WA), David Glen Riley (Clarkston, WA), Mike Timothy Strickler (Lewiston, ID)
Primary Examiner: Sandra Snapp
Assistant Examiner: Bryan N. Melvin
Application Number: 29/805,953
Type: Grant
Filed: Aug 31, 2021
Date of Patent: May 6, 2025
Assignee: Schweitzer Engineering Laboratories, Inc. (Pullman, WA)
Inventors: Joshua E. Hughes (Pullman, WA), David Glen Riley (Clarkston, WA), Mike Timothy Strickler (Lewiston, ID)
Primary Examiner: Sandra Snapp
Assistant Examiner: Bryan N. Melvin
Application Number: 29/805,953