Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kaikai Zhang0
Date of Patent
April 4, 2023
0Patent Application Number
173741450
Date Filed
July 13, 2021
0Patent Citations
Patent Primary Examiner
A retractable apparatus is provided. The retractable apparatus includes a stretchable mechanism. The stretchable mechanism includes a plurality of connecting portions arranged in a first plane. Adjacent connecting portions of the plurality of connecting portions are connected to each other in a retractable manner. At least three connecting portions are non-collinearly arranged.
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