Sport racket strings with hollow center core
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 16, 2009
Issued Date -
N/A
app pub date -
Aug 2, 2005
filing date -
Aug 2, 2005
priority date (Note) -
In Force
status (Latency Note)
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Importance

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Patent Longevity
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Abstract
A string for sport rackets includes a center core having at least one first hollow portion extending in an axial direction of the center core and at least one layer wrapped around the center core. The at least one layer is composed of a plurality of first periderm wires which are spirally or alternatively wrapped on the center core.
First Claim
all claims..Other Claims data not available
Family
- No Family data available.
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
YAO I FABRIC CO LTD | NO 334 SEC 6 CHANG MEI ROAD HOMEI CHANGHUA R O C |
International Classification(s)

- 2005 Application Filing Year
- D02G Class
- 174 Applications Filed
- 71 Patents Issued To-Date
- 40.81 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Wang, Tsan-Ching | Changhua, TW | 14 | 111 |
# of filed Patents : 14 Total Citations : 111 |
Cited Art Landscape
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Patent Citation Ranking
- 3 Citation Count
- D02G Class
- 7.69 % this patent is cited more than
- 16 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 |
---|---|---|---|
Nov 27, 2023 | 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 |
Nov 27, 2023 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 20, 2023 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 20, 2023 |
Jun 12, 2023 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Apr 10, 2019 | MAFP | MAINTENANCE FEE PAYMENT | free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY year of fee payment: 4 |
Oct 20, 2015 | I | Issuance | |
Sep 30, 2015 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Sep 16, 2013 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FIBERFORGE CORPORATION;REEL/FRAME:031978/0172 Owner name: DIEFFENBACHER CUSTOMER SUPPORT, LLC, GEORGIA Effective Date: Aug 28, 2013 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DIEFFENBACHER CUSTOMER SUPPORT, LLC;REEL/FRAME:031978/0226 Owner name: DIEFFENBACHER GMBH MASCHINEN- UND ANLAGENBAU, GERM Effective Date: Sep 16, 2013 |
Jul 25, 2013 | P | Published | |
Nov 07, 2012 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:CRAMER, DAVID R.;EVANS, DON O.;MCCLARD, CHRISTINA M.;AND OTHERS;SIGNING DATES FROM 20121025 TO 20121105;REEL/FRAME:029257/0238 Owner name: FIBERFORGE CORPORATION, COLORADO |
Jul 25, 2012 | F | Filing |

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