Self-tapping screw and method of manufacturing the same

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9926962
SERIAL NO

14948784

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A self-tapping screw includes a head and a shank extending from the head. The shank includes a cylindrical shank immediately below the head and a truncated conical shank following an end of the cylindrical shank. The cylindrical shank is provided with a plurality of first external threads, the truncated conical shank is provided with a plurality of second external threads following the first external threads, and a peak of each of the second external threads is provided with a biting surface having a concave-convex form.

Loading the Abstract Image... loading....

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
CROWN SCREW CORPORATIONSAITAMA 353-0001

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ogawa, Nobuhiro Saitama, JP 43 387
Yokoyama, Naoki Saitama, JP 84 995

Cited Art Landscape

Load Citation

Patent Citation Ranking

Forward Cite Landscape

Load Citation

Maintenance Fees

Fee Large entity fee small entity fee micro entity fee due date
7.5 Year Payment $3600.00 $1800.00 $900.00 Sep 27, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 27, 2029
Fee Large entity fee small entity fee micro entity fee
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