Shaft polishing method and a shaft produced thereby
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Oct 24, 2000
Grant Date -
N/A
app pub date -
Nov 1, 1999
filing date -
Nov 1, 1999
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A shaft polishing method includes a roughing step in which the length of fresh abrasive tape is pressed against an area, such as a hydraulic seal area, for selected time intervals while the shaft is rotated at a relatively low speed. A roughing step is followed by the finishing step, during which the shaft is rotated at a relatively high speed and the abrasive tape is pressed thereagainst for different time intervals. The resulting shaft area which has been thus polished is free of spiraling tool marks and spiraling marks left by grinding tools, which marks can provide paths through which hydraulic fluid may leak.
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 | |
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PARKER HANNIFIN CUSTOMER SUPPORT INC | 14300 ALTON PARKWAY IRVINE TX 92618 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Schaack, Donald J | White Bear Lake, MN | 1 | 2 |
# of filed Patents : 1 Total Citations : 2 |
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Patent Citation Ranking
- 2 Citation Count
- B24B Class
- 5.71 % this patent is cited more than
- 25 Age
Forward Cite Landscape
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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 |
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Apr 08, 2019 | 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: SMALL ENTITY |
Apr 08, 2019 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Mar 03, 2019 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Mar 03, 2019 |
Oct 22, 2018 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: SMALL ENTITY |
Mar 03, 2015 | I | Issuance | |
Feb 11, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Mar 29, 2014 | F | Filing | |
Mar 29, 2014 | PD | Priority Date | |
Mar 24, 2014 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:MORAD, FRED I.;CAMP, WILLIAM P., JR.;REEL/FRAME:032555/0943 Owner name: WORLDWIDE INTEGRATED RESOURCES, INC., CALIFORNIA Effective Date: Mar 24, 2014 |

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