Recessed head fastener and driver combination

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9957993
APP PUB NO 20160230799A1
SERIAL NO

14966179

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

A screw recess and driver combination that comprises the use of varying frustums of differing cones to provide driver/recess contact faces that are elliptical.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • RESEARCH ENGINEERING & MANUFACTURING INC.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Pritchard, Alan Cornwall, GB 16 156

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 Nov 1, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Nov 1, 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