Patent US3716957A successfully refreshed from Google Patents.
Patent US2407213A successfully refreshed from Google Patents.
US4884814A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf ball
Assignee: Spalding and Evenflo Companies Inc
•
Filing: 1988-01-15
•
Granted: 1989-12-05
•
Expires: 2008-01-15
Abstract
Abstract The subject invention relates to golf ball technology, and more particularly, golf ball cover technology. The invention is concerned with a particular mixture of ionic resins as a golf ball cover composition. Ionomers have been widely used as golf ball cover materials for the past 15 years. While these ionomers are very durable, they have a deficiency as a golf ball cover material in that they tend to be hard. This invention is concerned with a mixture of a hard ionomer with a soft ionomer in order to produce a golf ball cover composition wherein the cover is softer than the prior art ionomer covers. A golf ball covered in accordance with this invention is durable and a skilled golfer can impart back spin to the ball in play.
Inventors
- 👤 Michael J. Sullivan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:22
CPC Classifications
A; A63; A63B; A63B37/00; A63B37/12; C; C08; C08L; C08L33/00; C08L33/02; A63B37/0003; A63B37/0023; A63B37/0024; A63B37/0029; A63B37/003; A63B37/0031; A63B37/0037; A63B37/007; A63B37/0072; A63B37/0074; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08L23/0876; C09; C09D; C09D123/00; C09D123/02; C09D123/04; C09D123/08; C08L2205/00; C08L2205/02; C08L2205/03; C08L2205/035; Y; Y10; Y10S; Y10S524/00; Y10S524/908
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
144 words
A golf ball comprising a core and a cover, wherein said cover comprises from about 25 to about 75 percent of a hard ionomer which is a sodium or zinc salt of the copolymer of an olefin having from 2 to 8 carbon atoms and an unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, wherein said hard ionomer has a modulus of from about 30,000 to about 50,000 P.S.I. and from about 75 to about 25 percent of a soft ionomer which is a sodium or zinc salt of a terpolumer of an olefin having from 2 to 8 carbon atoms, an unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, and an unsaturated monomer of the acrylate ester class having from 2 to 22 carbon atoms, wherein said soft ionomer has a modulus of from about 3,000 to 7,000 P.S.I.
Claim 2
Dependent Claim
144 words
A golf ball comprising a core and a cover, wherein said cover comprises from about 25 to about 75 percent of a hard ionomer which is a sodium or zinc salt of the copolymer of an olefin having from 2 to 8 carbon atoms and an unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, wherein said hard ionomer has a modulus of from about 30,000 to about 50,000 P.S.I. and from about 75 to about 25 percent of a soft ionomer which is a sodium or zinc salt of a terpolumer of an olefin having from 2 to 8 carbon atoms, an unsaturated monocarboxylic acid having from 3 to 8 carbon atoms, and an unsaturated monomer of the acrylate ester class having from 2 to 22 carbon atoms, wherein said soft ionomer has a modulus of from about 3,000 to 7,000 P.S.I.
Claim 3
Dependent Claim
44 words
The golf ball of claim 1 wherein the hard ionomer is a sodium or zinc salt of the copolymer of ethylene and methacrylic acid and the soft ionomer is a sodium salt of a terpolymer of ethylene, methacrylic acid and n- or iso-butyl acrylate.
Claim 4
Dependent Claim
33 words
The golf ball of claim 2 wherein said cover comprises from about 35 to about 65 percent of the hard ionomer and from about 65 to about 35 percent of the soft ionomer.
Claim 5
Dependent Claim
32 words
The golf ball of claim 2 wherein said cover comprises about 38 to about 62 percent of the hard ionomer and from about 62 to about 38 percent of the soft ionomer.
Claim 6
Dependent Claim
25 words
The golf ball of claim 2 wherein said cover comprises about 36.8 percent of the hard ionomer and about 59.9 percent of the soft ionomer.
Claim 7
Dependent Claim
25 words
The golf ball of claim 2 wherein said cover comprises about 59.0 percent of the hard ionomer and about 38.7 percent of the soft ionomer.
Claim 8
Dependent Claim
18 words
The golf ball of claim 2 wherein said cover composition incorporates an effective amount of a suitable pigment.
Claim 9
Dependent Claim
18 words
The golf ball of claim 3 wherein said cover composition incorporates an effective amount of a suitable pigment.
Claim 10
Dependent Claim
18 words
The golf ball of claim 4 wherein said cover composition incorporates an effective amount of a suitable pigment.
Claim 11
Dependent Claim
18 words
The golf ball of claim 5 wherein said cover composition incorporates an effective amount of a suitable pigment.
Claim 12
Dependent Claim
18 words
The golf ball of claim 6 wherein said cover composition incorporates an effective amount of a suitable pigment.
Claim 13
Dependent Claim
22 words
The golf ball of claim 2 wherein said cover composition incorporates from about 1 to about 10 percent of a suitable pigment.
Claim 14
Dependent Claim
22 words
The golf ball of claim 3 wherein said cover composition incorporates from about 1 to about 10 percent of a suitable pigment.
Claim 15
Dependent Claim
22 words
The golf ball of claim 4 wherein said cover composition incorporates from about 1 to about 10 percent of a suitable pigment.
Claim 16
Dependent Claim
22 words
The golf ball of claim 5 wherein said cover composition incorporates from about 1 to about 10 percent of a suitable pigment.
Claim 17
Dependent Claim
22 words
The golf ball of claim 6 wherein said cover composition incorporates from about 1 to about 10 percent of a suitable pigment.
Claim 18
Dependent Claim
39 words
The golf ball of claim 2 wherein said cover composition incorporates from about 1 to about 5 percent of a pigment which is a member selected from the group of titanium dioxide, barium sulfate, zinc oxide or zinc sulfate.
Claim 19
Dependent Claim
39 words
The golf ball of claim 3 wherein said cover composition incorporates from about 1 to about 5 percent of a pigment which is a member selected from the group of titanium dioxide, barium sulfate, zinc oxide or zinc sulfate.
Claim 20
Dependent Claim
39 words
The golf ball of claim 4 wherein said cover composition incorporates from about 1 to about 5 percent of a pigment which is a member selected from the group of titanium dioxide, barium sulfate, zinc oxide or zinc sulfate.
Claim 21
Dependent Claim
39 words
The golf ball of claim 5 wherein said cover composition incorporates from about 1 to about 5 percent of a pigment which is a member selected from the group of titanium dioxide, barium sulfate, zinc oxide or zinc sulfate.
Claim 22
Dependent Claim
39 words
The golf ball of claim 7 wherein said cover composition incorporates from about 1 to about 5 percent of a pigment which is a member selected from the group of titanium dioxide, barium sulfate, zinc oxide or zinc sulfate.
Claim 23
Dependent Claim
39 words
The golf ball of claim 2 wherein said cover composition incorporates from about 1 to about 3 percent of a pigment which is a member selected from the group of titanium dioxide, barium sulfate, zinc oxide or zinc sulfate.
Claim 24
Dependent Claim
39 words
The golf ball of claim 3 wherein said cover composition incorporates from about 1 to about 3 percent of a pigment which is a member selected from the group of titanium dioxide, barium sulfate, zinc oxide or zinc sulfate.
Claim 25
Dependent Claim
39 words
The golf ball of claim 4 wherein said cover composition incorporates from about 1 to about 3 percent of a pigment which is a member selected from the group of titanium dioxide, barium sulfate, zinc oxide or zinc sulfate.
Claim 26
Dependent Claim
39 words
The golf ball of claim 5 wherein said cover composition incorporates from about 1 to about 3 percent of a pigment which is a member selected from the group of titanium dioxide, barium sulfate, zinc oxide or zinc sulfate.
Claim 27
Dependent Claim
39 words
The golf ball of claim 6 wherein said cover composition incorporates from about 1 to about 3 percent of a pigment which is a member selected from the group of titanium dioxide, barium sulfate, zinc oxide or zinc sulfate.
References Cited (Backward Citations)
US1849920A
Cited
US1991367A
Cited
US2323775A
Cited
US2338863A
Cited
US2530789A
Cited
US2644850A
Cited
US2835642A
Cited
US2975151A
Cited
US3404134A
Cited
US3471460A
Cited
US3264272A
Cited
US3410928A
Cited
US3256227A
Cited
US3418270A
Cited
US3388186A
Cited
US3347957A
Cited
US3472916A
Cited
US3435093A
Cited
US3454676A
Cited
US3384612A
Cited
US3445546A
Cited
US3437718A
Cited
US3639527A
Cited
US3489642A
Cited
US3802912A
Cited
US3649578A
Cited
US3940146A
Cited
US3791915A
Cited
US3998778A
Cited
US3819768A
Cited
US3792124A
Cited
US3895035A
Cited
US3821179A
Cited
US3969434A
Cited
US4033933A
Cited
US3963799A
Cited
US3968065A
Cited
US4264075A
Cited
US4185831A
Cited
US4173669A
Cited
US4187358A
Cited
US4165347A
Cited
US4217430A
Cited
US4274637A
Cited
US4254013A
Cited
US4219628A
Cited
US4305851A
Cited
US4235980A
Cited
US4337947A
Cited
US4338227A
Cited
US4346196A
Cited
US4409366A
Cited
US4468499A
Cited
US4324872A
Cited
US4376845A
Cited
US4412040A
Cited
US4373066A
Cited
US4323247A
Cited
US4327199A
Cited
US4387188A
Cited
US4366273A
Cited
US4603172A
Cited
US4483537A
Cited
US4420580A
Cited
US4380606A
Cited
US4613533A
Cited
US4627993A
Cited
US4473683A
Cited
US4526375A
Cited
US4567219A
Cited
US4679795A
Cited
US4550141A
Cited
US4591611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-12-04 | 1993-06-05 | 1993-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-04 | 1997-06-05 | 1997-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-04 | 2001-06-05 | 2001-12-05 | $7700.00 | Window Closed / Lapsed |