The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 30, 2022
Filed:
Feb. 18, 2020
Applicant:
Ti Chen, Taipei, TW;
Inventor:
Ti Chen, Taipei, TW;
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
E05B 13/10 (2006.01); E05B 67/38 (2006.01); E05B 37/02 (2006.01); E05B 59/00 (2006.01); E05B 37/00 (2006.01);
U.S. Cl.
CPC ...
E05B 13/103 (2013.01); E05B 13/101 (2013.01); E05B 37/0058 (2013.01); E05B 37/02 (2013.01); E05B 59/00 (2013.01); E05B 67/383 (2013.01);
Abstract
A door lock has an inner door assembly, an indoor doorknob assembly, and an outdoor doorknob assembly. The inner door assembly has a locking assembly casing. The indoor doorknob assembly has a positioning resilient component located in the locking assembly casing and configured to switch the door lock between a locked state and an unlocked state. The door is provided with enhanced protection by enclosing the positioning resilient component in the locking assembly casing, so the safety is further improved.