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

Patent Owner(s)

Patent Owner	Address
COLORADO STATE UNIVERSITY RESEARCH FOUNDATION	P O BOX 483 FORT COLLINS CO 80522
SEKISUI CHEMICAL CO LTD	JAPAN

International Classification(s)

• C07D:HETEROCYCLIC COMPOUNDS

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Chen, Eugene Y-X	Fort Collins, US	2	2
# of filed Patents : 2 Total Citations : 2
Eguchi, Yuji	Tsukuba, JP	21	290
# of filed Patents : 21 Total Citations : 290
Wang, Lu	Fort Collins, US	460	6920
# of filed Patents : 460 Total Citations : 6920

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Patent Citation Ranking

• 1 Citation Count
• C07D Class

• 42.14 % this patent is cited more than
• 8 Age

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Maintenance Fees

Fee	Large entity fee	small entity fee	micro entity fee	due date
7.5 Year Payment	$3600.00	$1800.00	$900.00	Jun 12, 2025
11.5 Year Payment	$7400.00	$3700.00	$1850.00	Jun 12, 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

Full Text

US Patent No: 9567759

Automatic locking device for track mounted gangway

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Abstract

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A locking device and apparatus is disclosed. The locking device is particularly suitable for use in combination with a device such as a track mounted gangway and safety cage to reduce the ability to reposition the gangway and safety cage along a track surface while in the lowered access position. The locking device preferably includes a lever assembly and a pivot assembly having a friction pad connected to the lever assembly. When the lever assembly and/or gangway device is adjusted in a first direction, the friction pad applies pressure on the track surface and moveability between the gangway and the track surface is reduced.

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Description

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Claims

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Claims data not available

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Legal Events

 

• MAFP2024
• MAFP2020
• I2017
• STCF2017
• P2014
• AS2014
• AS2013
• F2013
• AS2013

Date	Code	Event	Description
Jul 10, 2024	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 8TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2552); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 8
Aug 14, 2020	MAFP	MAINTENANCE FEE PAYMENT	free format text: PAYMENT OF MAINTENANCE FEE, 4TH YR, SMALL ENTITY (ORIGINAL EVENT CODE: M2551); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY year of fee payment: 4
Feb 14, 2017	I	Issuance
Jan 25, 2017	STCF	INFORMATION ON STATUS: PATENT GRANT	free format text: PATENTED CASE
Dec 11, 2014	P	Published
Apr 30, 2014	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:CARBIS HOLDINGS, INC.;REEL/FRAME:032788/0856 Owner name: SAM CARBIS ASSET MANAGEMENT, LLC, SOUTH CAROLINA Effective Date: Apr 30, 2014
Dec 30, 2013	AS	ASSIGNMENT	free format text: MERGER;ASSIGNOR:ALUMINUM LADDER COMPANY;REEL/FRAME:032174/0570 Owner name: CARBIS HOLDINGS, INC., SOUTH CAROLINA Effective Date: Dec 30, 2013
Jun 06, 2013	F	Filing
Jun 03, 2013	AS	ASSIGNMENT	free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MIZELL, SHAWN CRAMER;COOK, ANTHONY JAY;REEL/FRAME:030573/0221 Owner name: ALUMINUM LADDER COMPANY, SOUTH CAROLINA Effective Date: Jun 03, 2013