Stairway descending assistance device

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 10583064
SERIAL NO

16440992

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

An apparatus for assisting a user with safer descent of a stairway that has at least one handrail. The apparatus essentially serves as a second handrail which the user can hold onto and depend on to support their weight, while holding onto a handrail while they descend the stairway. The user would use the apparatus in the handrail engaged configuration when descending a stairway, and in the stowed configuration for all other venues. The portability allows the user to bring the apparatus with them everywhere, enabling the user to become comfortable and confident with the apparatus' use.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

  • Assignment data not available. Check PTO

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chang, Nathan Kazumi San Francisco, US 1 1

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 10, 2027
11.5 Year Payment $7400.00 $3700.00 $1850.00 Sep 10, 2031
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