Security lock for door

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 11015376
APP PUB NO 20190264480A1
SERIAL NO

16009551

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Importance

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Abstract

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A security lock for a door is provided having a bracket on the interior side of the door with a locking bolt mounted in the bracket. The bolt is adapted for movement between a raised, unlocked position above a cavity on the floor below the bracket and a lowered, locked position where the bolt is in the cavity to prevent the door from being opened. A bolt restraint is mounted on the bracket and cooperates with the bracket to maintain the bolt in its unlocked position. The bolt restraint, for example, a spring-loaded ball that engages an annular recess in the bolt, releases the bolt into its locked position when a downward force is applied to the bolt. The locking bolt has an enlarged flange that stops movement of the bolt into the cavity beyond a predetermined location on the bolt.

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Patent Owner(s)

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International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Rankin,, Sr David Daniel Yadkinville, US 10 19

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Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
3.5 Year Payment $1600.00 $800.00 $400.00 Nov 25, 2024
7.5 Year Payment $3600.00 $1800.00 $900.00 Nov 25, 2028
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 25, 2032
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Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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Surcharge - 11.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge after expiration - Late payment is unavoidable $700.00 $350.00 $175.00
Surcharge after expiration - Late payment is unintentional $1,640.00 $820.00 $410.00