Filed by Shanghai Advanced Research Institute, Chinese Academy of Science, Shanghai (CN); Shanghai Institute of Applied Physics, Chinese Academy of Science, Shanghai (CN); and HIGHLIGHT TECH (SHANGHAI) CORP., Shanghai (CN)
Filed on Dec. 28, 2020, as Appl. No. 29/763,967.
Term of patent 15 Years
LOC (14) Cl. 23 - 01
U.S. Cl. D23—269
The ornamental design for a sealing disc for sealing vacuum valve, as shown and described.