Maintenance window locking device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12221811
APP PUB NO 20220403681A1
SERIAL NO

17776811

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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A maintenance window locking device includes a maintenance window body (1), a maintenance window cover (2), a fastening plate (3), a first limiting mechanism (1a) including a groove, and a roller (3a). The fastening plate (3) includes a fastening plate body and a pin (3c) which are of an integrated structure. The pin (3c) is rotatably connected to the roller (3a). The maintenance window body (1) is hinged to a first end of the maintenance window cover (2). The fastening plate body is rotatably connected to a second end of the maintenance window cover (2). The first limiting mechanism (1a) is located on the maintenance window body (1). The fastening plate body drives the maintenance window cover (2) to move toward the maintenance window body (1). The roller (3a) rolls along the first limiting mechanism (1a) until the roller is clamped into the groove, such that the maintenance window cover (2) and the maintenance window body (1) are tightly attached.

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First Claim

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Family

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Patent Owner(s)

  • ZTE CORPORATION

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Xu, Xiaohui Shenzhen, CN 24 39

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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 Aug 11, 2028
7.5 Year Payment $3600.00 $1800.00 $900.00 Aug 11, 2032
11.5 Year Payment $7400.00 $3700.00 $1850.00 Aug 11, 2036
Fee Large entity fee small entity fee micro entity fee
Surcharge - 3.5 year - Late payment within 6 months $160.00 $80.00 $40.00
Surcharge - 7.5 year - Late payment within 6 months $160.00 $80.00 $40.00
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