Hydraulic brake mechanism
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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May 6, 2014
Grant Date -
Jul 18, 2013
app pub date -
Jan 16, 2012
filing date -
Jan 16, 2012
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Abstract
A hydraulic brake mechanism is described including a housing. A master cylinder assembly is disposed within the housing, and the master cylinder assembly includes a fluid chamber. The fluid chamber includes a first chamber portion having a first diameter and a second chamber portion having a second diameter, with the first diameter greater than the second diameter. The fluid chamber includes a transition region between the first and second chamber portions. The mechanism includes a piston assembly having a piston disposed within the fluid chamber. A first seal is configured to sealingly engage between the first chamber portion and the piston, and a second seal is configured to sealingly engage between the second chamber portion and the piston. The mechanism includes an outlet port extending from the fluid chamber from or adjacent the transition region.
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 | |
---|---|---|
SRAM LLC | 1000 W FULTON MARKET 4TH FLOOR CHICAGO IL 60607 |
International Classification(s)

- 2012 Application Filing Year
- B62L Class
- 48 Applications Filed
- 30 Patents Issued To-Date
- 62.50 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Dunlap, Charles E | Manitou Springs, US | 5 | 52 |
# of filed Patents : 5 Total Citations : 52 | |||
Feuerstein, Paul | Brookfield, US | 13 | 175 |
# of filed Patents : 13 Total Citations : 175 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 10 Citation Count
- B62L Class
- 8.82 % this patent is cited more than
- 11 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|---|---|---|---|
11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Nov 6, 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 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Nov 07, 2016 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 09, 2016 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 09, 2016 |
Oct 09, 2016 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
May 20, 2016 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Oct 09, 2012 | I | Issuance | |
May 27, 2010 | P | Published | |
Apr 18, 2008 | F | Filing | |
Apr 18, 2007 | PD | Priority Date |

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