Dustproof grinder
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Feb 14, 2006
Issued Date -
N/A
app pub date -
Jan 31, 2005
filing date -
Jun 29, 2004
priority date (Note) -
Expired
status (Latency Note)
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Importance

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Abstract
A dustproof grinder including: a main body; a rotary shaft vertically mounted in the main body and drivable by the driving unit, a bottom end of the rotary shaft having a plane face facing downward; a bottom cover formed with a central through hole, the bottom cover being disposed at the bottom end of the main body; the plane face of the rotary shaft being larger than the through hole and positioned above top face of the bottom cover; and a sealing member disposed between the plane face and the top face of the bottom cover. A grinding disc is mounted at a bottom end of the rotary shaft for grinding or buffing an object. The bottom cover is sealed with the bottom end of the main body, also, the bottom cover is sealed with the plane face so that the dirt, dusts and chips are prevented from entering the interior of the grinder.
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 | |
---|---|---|
GISON MACHINERY CO LTD | NO 6 ALLEY 105 LANE 68 SEC 2 SINAN RD WURIH DIST TAICHUNG CITY |
International Classification(s)

- 2005 Application Filing Year
- B24B Class
- 617 Applications Filed
- 349 Patents Issued To-Date
- 56.57 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Lin, Freddy | Taichung, TW | 24 | 105 |
# of filed Patents : 24 Total Citations : 105 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- B24B Class
- 0 % this patent is cited more than
- 19 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 |
---|---|---|---|
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 |
---|---|---|---|
Mar 12, 2018 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 12, 2018 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.) |
Feb 14, 2018 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Feb 14, 2018 |
Sep 25, 2017 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.) |
Mar 08, 2013 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Aug 03, 2009 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Feb 14, 2006 | I | Issuance | |
Dec 29, 2005 | P | Published | |
Jan 31, 2005 | F | Filing | |
Dec 14, 2004 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:LIN, FREDDY;REEL/FRAME:016240/0263 Owner name: GISON MACHINERY CO., LTD., TAIWAN Effective Date: Dec 14, 2004 |
Jun 29, 2004 | PD | Priority Date |

Matter Detail

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