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:
May. 17, 2005
Filed:
Feb. 12, 2003
Applicant:
William NG, Bradenton, FL (US);
Inventor:
William Ng, Bradenton, FL (US);
Assignee:
Other;
Primary Examiner:
Int. Cl.
CPC ...
E05C017/56 ;
U.S. Cl.
CPC ...
Abstract
Door-lock hardware is constructed of corrosion-resistant material such as stainless steel. Such a material lacks magnetic properties to permit use in association with magnetic switches coupled to signal alarm and security systems. However, according to the preferred embodiment of the invention, a door latch of stainless steel or other non-magnetic material includes a ferrous-coated tongue portion to maintain compatibility with such monitors and alarms while providing a higher level of rust- and corrosion-resistance.
Ng, William. (2005). Door latch for alarm system (U.S. Patent No. 6893060). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6893060
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