US20030190977A1 - Heavy filler in golf ball cores - Google Patents
Heavy filler in golf ball cores Download PDFInfo
- Publication number
- US20030190977A1 US20030190977A1 US09/863,910 US86391001A US2003190977A1 US 20030190977 A1 US20030190977 A1 US 20030190977A1 US 86391001 A US86391001 A US 86391001A US 2003190977 A1 US2003190977 A1 US 2003190977A1
- Authority
- US
- United States
- Prior art keywords
- golf ball
- oxide
- bismuth
- core
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/005—Cores
- A63B37/006—Physical properties
- A63B37/0066—Density; Specific gravity
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0072—Characteristics of the ball as a whole with a specified number of layers
- A63B37/0074—Two piece balls, i.e. cover and core
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0072—Characteristics of the ball as a whole with a specified number of layers
- A63B37/0075—Three piece balls, i.e. cover, intermediate layer and core
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0077—Physical properties
- A63B37/0078—Coefficient of restitution
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0077—Physical properties
- A63B37/0086—Flexural modulus; Bending stiffness
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0077—Physical properties
- A63B37/0091—Density distribution amongst the different ball layers
Definitions
- the invention relates generally to compositions for golf balls. More specifically, the invention relates to fillers for golf ball centers and cores.
- flight distance One of the parameters of golf ball performance that receives great attention is flight distance. Although there are a variety of factors that influence a golf ball's flight distance, perhaps the most important factor relates to the rebound characteristics of the ball which is dictated in large part by the materials used to construct the golf ball.
- golf balls As is well known in the industry, there are a number of different types of golf balls. The predominant varieties are a two-piece and a three-piece golf ball. A two piece golf ball is typically constructed with a solid core and a cover. A three-piece ball is typically a thread wound solid center with a cover. Within these two broad categories are numerous variations such a liquid filled centers for three-piece balls. Regardless of the particular golf ball type, all golf balls have rebound characteristics that are dictated by the materials and construction type utilized.
- the compression of a golf ball is a measure of the deflection of the golf ball under a load of 200 lbs.
- the Professional Golf Association (PGA) measures compression as (0.180′′- deflection) ⁇ 100.
- PGA Professional Golf Association
- the lower the PGA compression the softer the golf ball.
- the softer golf ball (with a softer core and/or cover) exhibits better feel, click and spin characteristics when compared with a high compression golf ball.
- a further object is to meet the USGA golf ball weight requirements without increasing the golf ball compression.
- the invention described herein relates to the addition of high density inorganic powders of metals and oxides that can be used to increase the weight of a center for a two-piece golf ball and the core of a three-piece wound golf ball without significantly compromising the rebound characteristics of the golf ball produced.
- the fillers used have a high specific gravity of about 5.4 and higher.
- FIG. 1 is a cross section of a three-piece golf ball according to one embodiment of the invention.
- FIG. 2 is a cross section of a two-piece golf ball according to one embodiment of the invention.
- fillers can be incorporated into golf ball cores and centers to increase the weight of the resulting golf ball. It has now been discovered that the utilization of high density fillers having specific gravities of about 5.4 or greater can be used to increase the weight of a golf ball center 1 (as shown in FIG. 1), or core 1 a (as shown in FIG. 2) without significantly reducing the rebound characteristics of the resulting golf ball which further comprises cover 2 .
- the following table contains a list of high density inorganic elements that meet the aforementioned criteria.
- the list is provided by way of illustration and not limitation.
- the key criteria is that the filler material must have a specific gravity of at least about 5.6.
- TABLE 1 Inorganic Element Specific Gravity Tungsten 19.3 Bismuth 9.8 Copper 8.9 Bismuth oxide 8.9 Nickel 8.9 Cobalt 8.9 Iron/Steel 7.7 Tin 7.3 Chromium 7.2 Zinc 7.1 Bismuth subcarbonate 6.9 Cupric oxide 6.4 Barium tungstate 6.4 Cuprous oxide 6.0 Ferrous oxide 5.7
- centers or cores incorporating such fillers are prepared by dry mixing polybutadiene rubber with the filler of choice and other rubber vulcanizing ingredients to create the desired blend. Mixing can be accomplished in an internal mixer such as a Banbury mixer or an open mill as is well known in the art. The mixture is then sheeted and allowed to cool for preferably 8 hours minimum.
- the sheeted material is then placed in a warm up mill and heated to about between 110° F. to 160° F.
- the sheets are then stripped off the mill of desired thickness and width and fed into an extruder.
- a die of desired geometric shape converts the sheets into extrudate which is cut into plugs of desired weight.
- the plugs are then optionally fed into a duster to dust the plugs to prevent the plugs from adhering to each other.
- the plugs are placed into compression molds for final forming.
- the plugs are heated under pressure in the molds to preferably at least 290° F. as is well known in the art to ensure peroxide activation.
- the molded cores or centers are maintained in the molds until cured.
- the amount of time needed to cure the cores and centers is a product of the peroxide activity. The end result is a core or center having the desired diameter.
Abstract
Description
- A claim of benefit is made to U.S. Provisional Application Ser. No. 60/093,229 filed Jul. 17, 1999, the contents of which are incorporated herein by reference.
- 1. Field of the Invention
- The invention relates generally to compositions for golf balls. More specifically, the invention relates to fillers for golf ball centers and cores.
- 2. Description of the Related Art
- One of the parameters of golf ball performance that receives great attention is flight distance. Although there are a variety of factors that influence a golf ball's flight distance, perhaps the most important factor relates to the rebound characteristics of the ball which is dictated in large part by the materials used to construct the golf ball.
- As is well known in the industry, there are a number of different types of golf balls. The predominant varieties are a two-piece and a three-piece golf ball. A two piece golf ball is typically constructed with a solid core and a cover. A three-piece ball is typically a thread wound solid center with a cover. Within these two broad categories are numerous variations such a liquid filled centers for three-piece balls. Regardless of the particular golf ball type, all golf balls have rebound characteristics that are dictated by the materials and construction type utilized.
- To conform to United States Golf Association (“U.S.G.A.”) guidelines and regulations, golf balls have to be constructed to meet specific weight requirements. When a golf ball core or center composition is below specified weight requirements, one of the techniques used to increase weight is to add fillers to the centers and cores of three-piece golf balls and two-piece golf balls, respectively. Conventional fillers used include calcium carbonate (specific gravity of 2.73), barium sulfate (sp. gr. of 4.3) and zinc oxide (sp. gr. 5.6). Although these materials can be effectively used to increase the weight of a golf ball, the inevitable volume occupied by these materials when incorporated into a center or core results in a reduction in the m polymer/rubber content of the center or core. By extending the rubber with fillers or reducing the polymer/rubber content, the coefficient of restitution of the resulting golf ball is reduced which translates into reduced flight distance.
- The compression of a golf ball is a measure of the deflection of the golf ball under a load of 200 lbs. The Professional Golf Association (PGA) measures compression as (0.180″- deflection)×100. Typically, the lower the PGA compression the softer the golf ball. The softer golf ball (with a softer core and/or cover) exhibits better feel, click and spin characteristics when compared with a high compression golf ball.
- An additional detrimental side effect of high stiffness content is that a high loading of fillers stiffens the rubber compound and increases the compression of the core or center while reducing the resilience properties.
- It has now been discovered that the incorporation of high density materials such as tungsten into cores and centers can be used to meet golf ball weight requirements without significantly reducing the coefficient of restitution or increasing the compression of the golf ball produced. In some instances, the opposite effect has been observed.
- It is thus an object of the invention to provide a golf ball center or core composition that uses high specific gravity fillers in order to maintain the weight of a conventional golf ball core or center having a lower compression without significantly compromising the resilience characteristics of the golf ball in which such a center or core is incorporated. A further object is to meet the USGA golf ball weight requirements without increasing the golf ball compression.
- The invention described herein relates to the addition of high density inorganic powders of metals and oxides that can be used to increase the weight of a center for a two-piece golf ball and the core of a three-piece wound golf ball without significantly compromising the rebound characteristics of the golf ball produced. The fillers used have a high specific gravity of about 5.4 and higher.
- These objects and features of the present invention will be apparent from a review of the drawings and a reading of the following detailed description of the invention.
- FIG. 1 is a cross section of a three-piece golf ball according to one embodiment of the invention.
- FIG. 2 is a cross section of a two-piece golf ball according to one embodiment of the invention.
- As is well known in the art, fillers can be incorporated into golf ball cores and centers to increase the weight of the resulting golf ball. It has now been discovered that the utilization of high density fillers having specific gravities of about 5.4 or greater can be used to increase the weight of a golf ball center1 (as shown in FIG. 1), or
core 1 a (as shown in FIG. 2) without significantly reducing the rebound characteristics of the resulting golf ball which further comprises cover 2. - The following table contains a list of high density inorganic elements that meet the aforementioned criteria. The list is provided by way of illustration and not limitation. The key criteria is that the filler material must have a specific gravity of at least about 5.6.
TABLE 1 Inorganic Element Specific Gravity Tungsten 19.3 Bismuth 9.8 Copper 8.9 Bismuth oxide 8.9 Nickel 8.9 Cobalt 8.9 Iron/Steel 7.7 Tin 7.3 Chromium 7.2 Zinc 7.1 Bismuth subcarbonate 6.9 Cupric oxide 6.4 Barium tungstate 6.4 Cuprous oxide 6.0 Ferrous oxide 5.7 - In one embodiment, centers or cores incorporating such fillers are prepared by dry mixing polybutadiene rubber with the filler of choice and other rubber vulcanizing ingredients to create the desired blend. Mixing can be accomplished in an internal mixer such as a Banbury mixer or an open mill as is well known in the art. The mixture is then sheeted and allowed to cool for preferably 8 hours minimum.
- The sheeted material is then placed in a warm up mill and heated to about between 110° F. to 160° F. The sheets are then stripped off the mill of desired thickness and width and fed into an extruder. A die of desired geometric shape converts the sheets into extrudate which is cut into plugs of desired weight. The plugs are then optionally fed into a duster to dust the plugs to prevent the plugs from adhering to each other.
- Next, the plugs are placed into compression molds for final forming. For purposes of forming golf ball cores or centers, the plugs are heated under pressure in the molds to preferably at least 290° F. as is well known in the art to ensure peroxide activation. The molded cores or centers are maintained in the molds until cured. As is well known in the art, the amount of time needed to cure the cores and centers is a product of the peroxide activity. The end result is a core or center having the desired diameter.
- The following examples are illustrative of the advantages obtains by using high density fillers. The amounts of compound components are specified as being parts per hundred parts by weight of rubber unless specified otherwise. As used herein, “high cis” shall mean a cis content of 92% or greater. The same specific gravity was maintained for all three compounds to give the same weight after molding of the cores. Only part levels of the weight enhancing filler was varied in the compound.
EXAMPLE 1 A B C COMPOUND High cis polybutadiene 100 100 100 Zinc diacrylate 29.5 29.5 29.5 Zinc oxide 5 5 5 Zinc stearate 3 3 3 Core regrind 7.5 7.5 7.5 Peroxide 2.125 2.125 2.125 Calcium carbonate (2.73) 20.805 — — Zirconium dioxide (5.50) — 15.285 — Tungsten (19.3) — — 12.875 Total 167.930 162.410 160.000 Compound specific gravity 1.139 1.139 1.139 Volume occupied by filler (%) 5.17 1.95 0.48 CORE DATA: Size (inches) 1.54 1.54 1.54 Weight (g) 36.7 36.8 36.7 Compression (PGA) 95.7 89.3 83.0 Coefficient of restitution 0.695 0.697 0.702 BALL DATA: Size (inches) 1.68 1.68 1.68 Weight (g) 45.3 45.2 45.1 Compression (PGA) 103.6 97.3 93.2 Coefficient of restitution 0.703 0.706 0.706 FLIGHT DATA: Driver; carry (yards) 245.5 245.7 246.3 - As clearly demonstrated by the test results, the use of heavy weight fillers results in a desirable lower PGA compression and a higher coefficient of restitution relative to a core or center made with a filler having a lower specific gravity. When a filler having a relatively low specific gravity is used, inevitably more filler has to be used to meet the desired weight range for the core or center. The increased amounts of filler results in the reduction of other compound components. It is this reduction that leads to the increase in PGA compression and decrease in coefficient of restitution.
- It will be appreciated that the instant specification and claims are set forth by way of illustration and made without departing from the spirit and scope of the present invention. Having thus described my invention, what I claim as new and desire to secure by United States Letters Patent is:
Claims (4)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/863,910 US20030190977A1 (en) | 1998-07-17 | 2001-05-23 | Heavy filler in golf ball cores |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US9322998P | 1998-07-17 | 1998-07-17 | |
US09/353,905 US6270428B1 (en) | 1998-07-17 | 1999-07-15 | Heavy filler in golf ball cores |
US09/863,910 US20030190977A1 (en) | 1998-07-17 | 2001-05-23 | Heavy filler in golf ball cores |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/353,905 Continuation US6270428B1 (en) | 1998-07-17 | 1999-07-15 | Heavy filler in golf ball cores |
Publications (1)
Publication Number | Publication Date |
---|---|
US20030190977A1 true US20030190977A1 (en) | 2003-10-09 |
Family
ID=26787292
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/353,905 Expired - Fee Related US6270428B1 (en) | 1998-07-17 | 1999-07-15 | Heavy filler in golf ball cores |
US09/863,910 Abandoned US20030190977A1 (en) | 1998-07-17 | 2001-05-23 | Heavy filler in golf ball cores |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US09/353,905 Expired - Fee Related US6270428B1 (en) | 1998-07-17 | 1999-07-15 | Heavy filler in golf ball cores |
Country Status (4)
Country | Link |
---|---|
US (2) | US6270428B1 (en) |
EP (1) | EP1098682A4 (en) |
AU (1) | AU756548B2 (en) |
WO (1) | WO2000003767A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090029096A1 (en) * | 2005-12-21 | 2009-01-29 | Riddle Dennis L | Lay Flat Flooring Products and Methods |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6469105B1 (en) * | 1995-11-21 | 2002-10-22 | Acushnet Company | Compositions useful for forming the layers of a golf ball and method of making same |
US20030027664A1 (en) * | 2001-07-27 | 2003-02-06 | Sanjay Kuttappa | Golf ball with high specific gravity threads |
US6945879B2 (en) * | 2002-08-22 | 2005-09-20 | Wilson Sporting Goods Co. | Multi-layered balanced golf-ball |
US6899639B2 (en) * | 2002-08-22 | 2005-05-31 | Wilson Sporting Goods Co. | Two piece balanced golf ball |
US20040102257A1 (en) * | 2002-08-22 | 2004-05-27 | Wilson Sporting Goods Co. | Four piece golf ball |
US20040157681A1 (en) * | 2002-08-22 | 2004-08-12 | Wilson Sporting Goods Co. | Low compression golf ball |
US20040162162A1 (en) * | 2002-08-22 | 2004-08-19 | Wilson Sporting Goods Co. | High velocity golf ball |
US20110160001A1 (en) * | 2009-12-30 | 2011-06-30 | Bridgestone Sports Co., Ltd. | Multi-piece golf ball |
US9878213B2 (en) * | 2012-09-07 | 2018-01-30 | Acushnet Company | Golf balls having dual-layered cores with metal-containing centers and thermoplastic outer cores |
US9095746B2 (en) * | 2012-09-07 | 2015-08-04 | Acushnet Company | Golf balls having dual-layered cores with metal-containing centers and thermoset outer cores |
Citations (9)
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US266772A (en) * | 1882-10-31 | Catapult for throwing life-lines | ||
US1470302A (en) * | 1921-06-14 | 1923-10-09 | Kinesthetic Process Co Inc | Balanced golf ball |
US3384612A (en) * | 1966-02-01 | 1968-05-21 | Du Pont | Golf ball |
US4141559A (en) * | 1976-12-27 | 1979-02-27 | Uniroyal, Inc. | Two-piece solid golf ball |
US4863167A (en) * | 1984-10-30 | 1989-09-05 | Sumitomo Rubber Industries, Ltd. | Multi-piece solid golf ball |
US5340112A (en) * | 1992-04-28 | 1994-08-23 | Sumitomo Rubber Industries, Ltd. | Thread wound golf ball |
US5482285A (en) * | 1993-01-26 | 1996-01-09 | Sumitomo Rubber Industries, Ltd. | Three-piece solid golf ball |
US5730663A (en) * | 1995-03-27 | 1998-03-24 | Sumitomo Rubber Industries, Ltd. | Solid golf ball |
US5935022A (en) * | 1996-08-22 | 1999-08-10 | Sumitomo Rubber Industries, Ltd. | Three-piece solid golf ball |
Family Cites Families (17)
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US4979746A (en) | 1981-05-04 | 1990-12-25 | Gentiluomo Joseph A | Golf ball |
JPS59194760A (en) | 1983-04-21 | 1984-11-05 | 住友ゴム工業株式会社 | Three-piece solid golf ball |
JPS6014877A (en) | 1983-07-06 | 1985-01-25 | 住友ゴム工業株式会社 | Golf ball |
US4650193A (en) | 1984-12-10 | 1987-03-17 | Spalding & Evenflo Companies, Inc. | Golf ball |
JPS62181069A (en) | 1986-02-04 | 1987-08-08 | キャスコ株式会社 | Solid three-piece golf ball |
US4848770A (en) | 1986-10-20 | 1989-07-18 | Wilson Sporting Goods Co. | Three-piece solid golf ball |
JP2674627B2 (en) | 1989-03-01 | 1997-11-12 | 住友ゴム工業株式会社 | Large three-piece solid golf ball |
GB2230531B (en) | 1989-03-15 | 1992-06-17 | Bridgestone Corp | Three-piece solid golf ball |
JP2680405B2 (en) | 1989-04-04 | 1997-11-19 | 住友ゴム工業株式会社 | Large three-piece solid golf ball |
KR920006255B1 (en) | 1990-06-01 | 1992-08-01 | 일야실업 주식회사 | Three piece solid golf ball |
FR2666018A1 (en) | 1990-08-22 | 1992-02-28 | Salomon Sa | GOLF BALL. |
US5104126A (en) | 1991-07-08 | 1992-04-14 | Gentiluomo Joseph A | Golf ball |
US5439227A (en) | 1992-08-31 | 1995-08-08 | Bridgestone Sports Co., Ltd. | Multi-piece solid golf ball |
US5273286A (en) | 1992-11-06 | 1993-12-28 | Sun Donald J C | Multiple concentric section golf ball |
JP3397420B2 (en) | 1993-12-28 | 2003-04-14 | 住友ゴム工業株式会社 | Three piece solid golf ball |
JP2866298B2 (en) | 1993-12-28 | 1999-03-08 | 住友ゴム工業株式会社 | Three piece solid golf ball |
JP3008844B2 (en) * | 1996-02-16 | 2000-02-14 | ブリヂストンスポーツ株式会社 | Golf ball |
-
1999
- 1999-07-15 US US09/353,905 patent/US6270428B1/en not_active Expired - Fee Related
- 1999-07-16 WO PCT/US1999/016075 patent/WO2000003767A1/en not_active Application Discontinuation
- 1999-07-16 EP EP99935609A patent/EP1098682A4/en not_active Withdrawn
- 1999-07-16 AU AU51052/99A patent/AU756548B2/en not_active Ceased
-
2001
- 2001-05-23 US US09/863,910 patent/US20030190977A1/en not_active Abandoned
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US266772A (en) * | 1882-10-31 | Catapult for throwing life-lines | ||
US1470302A (en) * | 1921-06-14 | 1923-10-09 | Kinesthetic Process Co Inc | Balanced golf ball |
US3384612A (en) * | 1966-02-01 | 1968-05-21 | Du Pont | Golf ball |
US4141559A (en) * | 1976-12-27 | 1979-02-27 | Uniroyal, Inc. | Two-piece solid golf ball |
US4863167A (en) * | 1984-10-30 | 1989-09-05 | Sumitomo Rubber Industries, Ltd. | Multi-piece solid golf ball |
US5340112A (en) * | 1992-04-28 | 1994-08-23 | Sumitomo Rubber Industries, Ltd. | Thread wound golf ball |
US5482285A (en) * | 1993-01-26 | 1996-01-09 | Sumitomo Rubber Industries, Ltd. | Three-piece solid golf ball |
US5730663A (en) * | 1995-03-27 | 1998-03-24 | Sumitomo Rubber Industries, Ltd. | Solid golf ball |
US5935022A (en) * | 1996-08-22 | 1999-08-10 | Sumitomo Rubber Industries, Ltd. | Three-piece solid golf ball |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090029096A1 (en) * | 2005-12-21 | 2009-01-29 | Riddle Dennis L | Lay Flat Flooring Products and Methods |
Also Published As
Publication number | Publication date |
---|---|
AU756548B2 (en) | 2003-01-16 |
EP1098682A4 (en) | 2006-03-01 |
EP1098682A1 (en) | 2001-05-16 |
WO2000003767A8 (en) | 2000-07-20 |
US6270428B1 (en) | 2001-08-07 |
WO2000003767A1 (en) | 2000-01-27 |
AU5105299A (en) | 2000-02-07 |
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AS | Assignment |
Owner name: DUNLOP SPORTS GROUP AMERICAS INC., SOUTH CAROLINA Free format text: CHANGE OF NAME;ASSIGNOR:DUNLOP MAXFLI SPORTS CORPORATION;REEL/FRAME:016835/0111 Effective date: 20000728 |
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Owner name: TAYLOR MADE GOLF COMPANY, INC. D/B/A TAYLORMADE-AD Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:DUNLOP SLAZENGER GROUP AMERICAS INC.;REEL/FRAME:016937/0082 Effective date: 20051027 |
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Owner name: TAYLOR MADE GOLF COMPANY, INC., CALIFORNIA Free format text: CORRECTIVE COVERSHEET TO CORRECT TYPOGRAPHICAL ERR;ASSIGNOR:DUNLOP SPORTS GROUP AMERICAS INC.;REEL/FRAME:017804/0001 Effective date: 20051119 |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |