Culvert diffuser

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9869082
SERIAL NO

15340397

Stats

ATTORNEY / AGENT: (SPONSORED)

Importance

Loading Importance Indicators... loading....

Abstract

See full text

The present invention embodies a diffuser extending from the outlet end of a highway culvert, whereby the diffuser flares outwardly to provide a larger area cross-section at the outlet of the culvert in order to increase the capacity of the culvert and to reduce the effects of erosion from the outflow of water from the culvert outlet.

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

First Claim

See full text

Family

Loading Family data... loading....

Patent Owner(s)

Patent OwnerAddress
STATE OF MAINE DEPARTMENT OF TRANSPORTATION16 CHILD STREET AUGUSTA ME 04330

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Mann, Alexander W Thorndike, 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 Jul 16, 2025
11.5 Year Payment $7400.00 $3700.00 $1850.00 Jul 16, 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