String trimmer head configuration and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jul 5, 2016
Issued Date -
N/A
app pub date -
May 20, 2014
filing date -
Apr 22, 2009
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A trimmer head assembly and the method of configuring the trimmer head assembly. The trimmer head assembly has a housing that attaches to a string trimmer machine. A spool is provided inside the housing. The spool rotates about an axis of rotation. The spool can move longitudinally along the axis of rotation between a first position and a second position. A ratcheting mechanism is provided between the trimmer head housing and the spool. When the spool is in its first position, the ratcheting mechanism enables the spool to continuously rotate about the axis of rotation in the direction opposite that in which the trimmer head assembly spins. The ratchet mechanism also prevents the spool from rotating within the housing in the same direction in which the trimmer head is spinning.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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TORVENT LLC | 807 DOGWOOD DRIVE FAIRMONT NC 28340 |
International Classification(s)

- 2014 Application Filing Year
- B26B Class
- 250 Applications Filed
- 219 Patents Issued To-Date
- 87.60 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Alliss, George | Fairmont, US | 2 | 31 |
# of filed Patents : 2 Total Citations : 31 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 13 Citation Count
- B26B Class
- 82.17 % this patent is cited more than
- 9 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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11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jan 5, 2028 |
Fee | Large entity fee | small entity fee | micro entity fee |
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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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Jun 14, 2021 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jun 14, 2021 | 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 |
May 09, 2021 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: May 09, 2021 |
Dec 28, 2020 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
May 09, 2017 | I | Issuance | |
Apr 19, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 08, 2016 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Aug 25, 2016 | P | Published | |
Aug 28, 2015 | F | Filing | |
Aug 18, 2015 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NAGAMUNE, YASUSHI;REEL/FRAME:036448/0489 Owner name: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE Effective Date: Aug 18, 2015 |
Mar 12, 2013 | PD | Priority Date |

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