Grinding surfaces of workpieces
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Nov 22, 2011
Grant Date -
Apr 1, 2010
app pub date -
Dec 18, 2007
filing date -
Dec 21, 2006
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A method of grinding a workpiece with a grinding wheel is provided wherein the shape of the wheel is distorted in a predetermined manner during grinding by changing the speed of rotation of the wheel. This deformation of the wheel during grinding is employed to impart a desired shape to the surface of the workpiece. A grinding wheel is also provided which is asymmetric in side view to adapt it for use in accordance with the method.
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 | |
---|---|---|
FIVES LANDIS LIMITED | KEIGHLEY BD20 7SD |
International Classification(s)

- 2007 Application Filing Year
- B24B Class
- 563 Applications Filed
- 351 Patents Issued To-Date
- 62.35 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Clewes, Stuart | Keighley, GB | 2 | 17 |
# of filed Patents : 2 Total Citations : 17 | |||
Grayston, Granville | Keighley, GB | 1 | 4 |
# of filed Patents : 1 Total Citations : 4 |
Cited Art Landscape
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Patent Citation Ranking
- 3 Citation Count
- B24B Class
- 5.14 % this patent is cited more than
- 14 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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Fee | Large entity fee | small entity fee | micro entity fee |
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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 |
---|---|---|---|
Jan 23, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 24, 2003 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Mar 23, 2003 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 23, 2003 |
Oct 09, 2002 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Aug 21, 2001 | CC | CERTIFICATE OF CORRECTION | |
Mar 23, 1999 | I | Issuance | |
Jul 18, 1997 | F | Filing | |
Jul 18, 1997 | PD | Priority Date | |
Jul 08, 1997 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PUCILLO, BARRY;REEL/FRAME:008685/0335 Owner name: AMERICAN LOUVER COMPANY, ILLINOIS Effective Date: Jul 08, 1997 |

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