US3722887A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Correlated set of clubs with indicator line
Assignee: Acushnet Co
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Filing: 1971-11-16
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Granted: 1973-03-27
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Expires: 1991-11-16
Abstract
Abstract In a correlated set of golf clubs at least one visible indicator line on the striking face of each club head is provided. This indicator line lies in the loft plane of the club head and is in a predetermined angular relationship with a second line, real or imaginary, and being perpendicular to a third line, real or imaginary, formed by the intersection of the loft plane and the plane on which the club is placed in its normal position for striking a golf ball. The angular relationship is a certain degree for each successive club in the set.
Inventors
- 👤 A Cochran
- 👤 J Jepson
- 👤 E Woolley
- 👤 Lynch F Des
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:46
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0441; A63B53/045; A63B53/0458; A63B53/0462; A63B53/047; A63B60/00; A63B53/005; A63B53/0454
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
136 words
In a correlated set of golf clubs comprising the 2, 3, 4, 5, 6, 7, 8 and 9 irons, the improvement which comprises at least one visible indicator line on the striking face of each club head, said indicator line lying in the loft plane of the club head and in a predetermined angular relationship with a second line, real or imaginary, lying in the loft plane of the club head and being perpendicular to a third line, real or imaginary, formed by the intersection of the loft plane and the plane on which the club is placed in its normal position for striking a golf ball, said angular relationship being from about 0* to about 6* for a 9 iron and from about to about 3/4 * greater for each successive club in the set.
Claim 2
Dependent Claim
136 words
In a correlated set of golf clubs comprising the 2, 3, 4, 5, 6, 7, 8 and 9 irons, the improvement which comprises at least one visible indicator line on the striking face of each club head, said indicator line lying in the loft plane of the club head and in a predetermined angular relationship with a second line, real or imaginary, lying in the loft plane of the club head and being perpendicular to a third line, real or imaginary, formed by the intersection of the loft plane and the plane on which the club is placed in its normal position for striking a golf ball, said angular relationship being from about 0* to about 6* for a 9 iron and from about to about 3/4 * greater for each successive club in the set.
Claim 3
Dependent Claim
29 words
The set of clubs of claim 1 wherein the said angular relationship of the indicator line in each successive club is about 1/2 * greater than each preceding club.
Claim 4
Dependent Claim
137 words
The set of clubs of claim 1 in which the said angular relationship of the indicator line of the 9 iron is about 0*, the said angular relationship of the indicator line of the 8 iron is about 1/2 *, the said angular relationship of the indicator line of the 7 iron is about 1*, the said angular relationship of the indicator line of the 6 iron is about 1 1/2 *, the said angular relationship of the indicator line of the 5 iron is about 2*, the said angular relationship of the indicator line of the 4 iron is about 2 1/2 *, the said angular relationship of the indicator line of the 3 iron is about 3* and the said angular relationship of the indicator line of the 2 iron is about 3 1/2 *.
Claim 5
Dependent Claim
124 words
In a correlated set of golf clubs comprising the 3, 5, 7 and 9 irons, the improvement which comprises at least one visible indicator line on the striking face of each club head, said indicator line lying in the loft plane of the club head and in a predetermined angular relationship with a second line, real or imaginary, lying in the loft plane of the club head and being perpendicular to a third line real or imaginary formed by the intersection of the loft plane and the plane on which the club is placed in its normal position for striking a golf ball, said angular relationship being from about 1/2 * to about 1 1/2 * greater for each successive club in the set.
Claim 6
Dependent Claim
124 words
In a correlated set of golf clubs comprising the 3, 5, 7 and 9 irons, the improvement which comprises at least one visible indicator line on the striking face of each club head, said indicator line lying in the loft plane of the club head and in a predetermined angular relationship with a second line, real or imaginary, lying in the loft plane of the club head and being perpendicular to a third line real or imaginary formed by the intersection of the loft plane and the plane on which the club is placed in its normal position for striking a golf ball, said angular relationship being from about 1/2 * to about 1 1/2 * greater for each successive club in the set.
Claim 7
Dependent Claim
28 words
The set of clubs of claim 4 wherein the said angular relationship of the indicator line in each successive club is about 1* greater than each preceding club.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-26 | 1976-09-25 | 1977-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-26 | 1980-09-25 | 1981-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-26 | 1984-09-25 | 1985-03-27 | $7700.00 | Window Closed / Lapsed |