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• 15 United States
• 10 France
• 8 Japan
• 7 China
• 5 Korea
• 2 Other

Patent Owner(s)

Patent Owner	Address
VOESTALPINE RAILWAY SYSTEMS NORTRAK LLC	30 N GOULD ST STE N SHERIDAN WY 82801

International Classification(s)

• E01B:PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR M....
• E01C:CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GR....

• 2011 Application Filing Year
• E01B Class
• 100 Applications Filed
• 78 Patents Issued To-Date
• 78 % Issued To-Date

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Mattson, Steven R	Cheyenne, US	6	63
# of filed Patents : 6 Total Citations : 63

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Patent Citation Ranking

• 0 Citation Count
• E01B Class

• 0 % this patent is cited more than
• 11 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Dec 17, 2025

Fee	Large entity fee	small entity fee	micro entity fee
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

DATE PUBLISHED	PUBLICATION/PATENT NO.	PUBLICATION TYPE
June 17, 2014	US,8752773,B2   US8752773B2	GRANTED PATENT AS SECOND PUBLICATION
January 31, 2013	US,20130026246,A1   US20130026246A1	FIRST PUBLISHED PATENT APPLICATION

Full Text

US Patent No: 8752773

Grade crossing interface pad

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Abstract

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The invention relates to an interface pad comprising a stiffener supporting a resilient pad to cushion the panels in a grade crossing between and around the rails from impact with the underlying ties and to prevent the panels from moving. The pad may be flat or a cupped shape and may be of varying size to accommodate varying tie widths. The invention further comprises means to securely fasten such an interface pad to a railroad tie and minimize the possibility that the interface pad will be forcibly removed from the tie during installation of the rails or panels in the grade crossing.

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Description

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Claims

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Legal Events

 

• MAFP2021
• AS2021
• MAFP2017
• I2014
• STCF2014
• P2013
• AS2012
• F2011
• PD2011
• AS2011

Date	Code	Event	Description
Dec 08, 2021	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1552); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 8
Mar 25, 2021	AS	ASSIGNMENT	free format text: CHANGE OF NAME;ASSIGNOR:VOESTALPINE RAILWAY SYSTEMS NORTRAK I LLC;REEL/FRAME:065016/0228 Owner name: VOESTALPINE RAILWAY SYSTEMS NORTRAK LLC, WYOMING Effective Date: Mar 26, 2021 free format text: CHANGE OF NAME;ASSIGNOR:VOESTALPINE NORTRAK INC.;REEL/FRAME:065016/0219 Owner name: VOESTALPINE RAILWAY SYSTEMS NORTRAK INC., WYOMING Effective Date: Apr 09, 2020 free format text: MERGER;ASSIGNOR:VOESTALPINE RAILWAY SYSTEMS NORTRAK INC.;REEL/FRAME:064990/0346 Owner name: VOESTALPINE RAILWAY SYSTEMS NORTRAK I LLC, WYOMING Effective Date: Mar 25, 2021
Dec 05, 2017	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551) year of fee payment: 4
Jun 17, 2014	I	Issuance
May 28, 2014	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Jan 31, 2013	P	Published
Feb 10, 2012	AS	ASSIGNMENT	free format text: CHANGE OF NAME;ASSIGNOR:VAE NORTRAK NORTH AMERICA INC.;REEL/FRAME:028222/0462 Owner name: VOESTALPINE NORTRAK INC., WYOMING Effective Date: Feb 10, 2012
Jul 28, 2011	F	Filing
Jul 28, 2011	PD	Priority Date
May 06, 2011	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:MATTSON, STEVEN R.;REEL/FRAME:026674/0491 Owner name: VAE NORTRAK NORTH AMERICA INC., WYOMING Effective Date: May 06, 2011