Construction block
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Description
The broken lines showing diamond shaped openings on the top (
Claims
The ornamental design for a construction block, as shown and described.
Referenced Cited
U.S. Patent Documents
Foreign Patent Documents
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- “Retaining Wall Reinforcement: Other Options”; printed from https://www.allanblock.co.uk/reinforcement-options.aspx on Dec. 10, 2018 (6 pages).
Patent History
Patent number: D908926
Type: Grant
Filed: Jan 18, 2019
Date of Patent: Jan 26, 2021
Assignee: KING SAUD UNIVERSITY (Riyadh)
Inventors: Husain Abbas (Riyadh), Abdullah H. Alsabhan (Riyadh), Yousef A. Al-Salloum (Riyadh), Abobaker S. Binyahya (Riyadh)
Primary Examiner: Leanne Was-Englehart
Application Number: 29/677,330
Type: Grant
Filed: Jan 18, 2019
Date of Patent: Jan 26, 2021
Assignee: KING SAUD UNIVERSITY (Riyadh)
Inventors: Husain Abbas (Riyadh), Abdullah H. Alsabhan (Riyadh), Yousef A. Al-Salloum (Riyadh), Abobaker S. Binyahya (Riyadh)
Primary Examiner: Leanne Was-Englehart
Application Number: 29/677,330
Classifications
Current U.S. Class:
Perforated Or Openwork (18) (D25/114)