What this patent covers
A design patent covering the ornamental appearance of a smart door lock. The design is shown from every side — perspective, front, rear, side, top and bottom — with the drawings, not any written text, defining what is claimed.
US D1,115,490 is a design patent titled “Smart door lock”, invented by Haiqiang Wang and Xuanbing Wang and assigned to Zhejiang Kehon Intelligent Science & Technology Co Ltd.
The application was filed on September 30, 2024 and granted on March 3, 2026, 1 year, 5 months later. The specification refers to 9 drawing figures.
It is one of the patents our firm has obtained in the Design — Tools, Machinery & Transportation area.
Key dates and patent term
| Application filed | September 30, 2024 | |
|---|---|---|
| Patent granted | March 3, 2026 | 1 year, 5 months in prosecution at the U.S. Patent Office |
| Design term expires (nominal) | March 3, 2041 | 15 years from grant; design patents carry no maintenance fees. |
The expiration date is calculated from the grant and filing dates on the face of the patent. The actual date may vary based on patent-term adjustment (patent office delay), or terminal disclaimer (agreeing to a shorter term). This website is for information purposes only and is not legal advice.
Bibliographic details
| Patent number | US D1,115,490 |
|---|---|
| Title | Smart door lock |
| Inventors | Haiqiang Wang; Xuanbing Wang |
| Assignee | Zhejiang Kehon Intelligent Science & Technology Co Ltd |
| Filing date | September 30, 2024 |
| Grant date | March 3, 2026 |
| Category | Design — Tools, Machinery & Transportation |
Full text as published by the U.S. Patent Office
The sections below reproduce the official text of US D1,115,490 for reference. Open a section to read it.
Claims
Claims ( 1 )
CLAIM
The ornamental design for a smart door lock, as shown and described.
Description
FIG. 1 is a top, front, right-side perspective view of a smart door lock showing our new design;
FIG. 2 is a bottom, rear, left-side perspective view thereof;
FIG. 3 is a bottom, front, left-side perspective view thereof;
FIG. 4 is a front elevational view thereof;
FIG. 5 is a rear elevational view thereof;
FIG. 6 is a left-side elevational view thereof;
FIG. 7 is a right-side elevational view thereof;
FIG. 8 is a top plan view thereof; and,
FIG. 9 is a bottom plan view thereof.
The broken lines shown in the drawings depict portions of the smart door lock that form no part of the claimed design.
US D1,115,490: questions and answers
What is US Patent D1,115,490 about?
US D1,115,490, “Smart door lock”, is a design patent granted by the United States Patent and Trademark Office on March 3, 2026.
Who invented US Patent D1,115,490?
The named inventors are Haiqiang Wang, Xuanbing Wang.
Who owns US Patent D1,115,490?
The patent was issued to assignee Zhejiang Kehon Intelligent Science & Technology Co Ltd. Current ownership can change after grant; assignments are recorded with the U.S. Patent Office.
When was US Patent D1,115,490 filed?
The application was filed on September 30, 2024 and the patent granted on March 3, 2026.
When does US Patent D1,115,490 expire?
The nominal expiration date is March 3, 2041. 15 years from grant; design patents carry no maintenance fees.
Who was the patent attorney for US Patent D1,115,490?
This patent was prosecuted by Feigin & Fridman, LLC, patent attorneys in New York and New Jersey. Contact us to discuss protecting your own invention.
Other patents by Haiqiang Wang
- US D1,104,706 — Smart door lock
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