Anti-theft device for door locks
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 29, 2018
Issued Date -
N/A
app pub date -
Mar 22, 2016
filing date -
Mar 22, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The anti-theft device is configured in a door lock, and contains a first blocking piece, a second blocking device, a positioning piece, and a lever. The first blocking piece contains a first section and a second section bended and extended perpendicularly from the first section. The first section has a first through hole and a second through hole. The lever is engaged by a lock heart of the door lock. When the door lock is locked, the lock heart is turned to engage the lever so that the lever drives the first blocking piece downward by its first through hole. The second section of the first blocking piece as such blocks a lock tongue of the door lock so that the door lock cannot be opened without using key.
First Claim
Other Claims data not available
Family
International Classification(s)
- 2016 Application Filing Year
- E05B Class
- 1003 Applications Filed
- 767 Patents Issued To-Date
- 76.48 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 3 Citation Count
- E05B Class
- 26.71 % this patent is cited more than
- 7 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Nov 29, 2025 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 29, 2029 |
