Hand brake limiting device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 3, 2018
Issued Date -
N/A
app pub date -
Aug 8, 2016
filing date -
May 19, 2014
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Non-US Coverage
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Abstract
Provided is a hand brake limiting device, comprising a bearing I (10), a spring, a spring holder (12), a guide plate (9), and a guide plate holder (23); the bearing I (10) is disposed on the spring holder (12); the spring is sleeved on the outside of the bearing I (10); the guide plate (9) and the guide plate holder (23) are sequentially disposed at one side of the spring away from the spring holder (12); a stopper post III (7) is secured to one side of the spring holder (12) facing the spring; a stopper post In (8) is secured to one side of the guide plate (9) facing the spring; a stopper post II (26) is secured to one side of the guide plate holder (23) facing the guide plate (9).
First Claim
all claims..Other Claims data not available
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO LTD | NO 231 RUICHANG ROAD NORTH DISTRICT QINGDAO SHANDONG QINGDAO CITY SHANDONG PROVINCE 266031 |
International Classification(s)

- 2016 Application Filing Year
- B61H Class
- 71 Applications Filed
- 57 Patents Issued To-Date
- 80.29 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Bi, Jingquan | Shandong, CN | 2 | 1 |
# of filed Patents : 2 Total Citations : 1 | |||
Li, Xiangrui | Shandong, CN | 6 | 2 |
# of filed Patents : 6 Total Citations : 2 | |||
Lin, Chao | Shandong, CN | 122 | 2499 |
# of filed Patents : 122 Total Citations : 2499 | |||
Wang, Chaoheng | Shandong, CN | 2 | 1 |
# of filed Patents : 2 Total Citations : 1 | |||
Zhang, Xin | Shandong, CN | 895 | 4200 |
# of filed Patents : 895 Total Citations : 4200 | |||
Zhou, Jigang | Shandong, CN | 5 | 2 |
# of filed Patents : 5 Total Citations : 2 |
Cited Art Landscape
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Patent Citation Ranking
- 0 Citation Count
- B61H Class
- 0 % this patent is cited more than
- 7 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 3, 2025 |
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 3, 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

Legal Events
Date | Code | Event | Description |
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Apr 15, 2024 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Apr 15, 2024 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 13, 2024 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 13, 2024 |
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Aug 26, 2015 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Mar 13, 2012 | I | Issuance | |
Feb 22, 2012 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Nov 03, 2011 | ZAAB | NOTICE OF ALLOWANCE MAILED | free format text: ORIGINAL CODE: MN/=. |
Nov 02, 2011 | ZAAA | NOTICE OF ALLOWANCE AND FEES DUE | free format text: ORIGINAL CODE: NOA |
Nov 01, 2011 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Sep 17, 2009 | P | Published | |
Mar 16, 2009 | F | Filing | |
Mar 10, 2009 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:OKADA, HIROKI;SASAKI, TAKESHI;MATSUSHITA, SHINGO;AND OTHERS;REEL/FRAME:022453/0491 Owner name: RICOH COMPANY, LTD., JAPAN Effective Date: Mar 10, 2009 |
Mar 17, 2008 | PD | Priority Date |

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