Patent US4534564A successfully refreshed from Google Patents.
US4534564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club head
Assignee: Globeride Inc
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Filing: 1983-07-18
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Granted: 1985-08-13
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Expires: 2003-07-18
Abstract
Abstract A golf club driver head made from a plastic such as nylon is provided with a sole plate covering a cavity of a predetermined size and depth including a blind bore devoid of any weighting material extending from the inner end of the cavity towards the toe whereby the mass of the head is distributed for dynamic balance.
Inventors
- 👤 Magoichi Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:40
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0433; A63B53/0466; A63B60/00; A63B2209/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
173 words
A golf club driver head comprising: (a) a club head body made of high density plastic, and having a face portion, a top portion, a sole portion having a step for mounting a sole plate, a toe portion, a heel portion, a back portion and a neck; (b) said club head body having a cavity extending upwardly from an opening located substantially centrally of said sole portion; (c) a sole plate mounted at said step and covering said opening of said sole portion, said sole plate having a configuration substantially corresponding to that of said sole portion, except for a narrowed portion substantially midway between the region of the face portion and the region of the back portion; (d) said club head body having a blind bore devoid of any weighting material extending transversely from the inner end of said cavity and forwardly towards said toe portion; (e) said bore and cavity together with said centrally narrowed sole plate distributing the weight or mass of said head body to the peripheral portion thereof.
Claim 2
Dependent Claim
173 words
A golf club driver head comprising: (a) a club head body made of high density plastic, and having a face portion, a top portion, a sole portion having a step for mounting a sole plate, a toe portion, a heel portion, a back portion and a neck; (b) said club head body having a cavity extending upwardly from an opening located substantially centrally of said sole portion; (c) a sole plate mounted at said step and covering said opening of said sole portion, said sole plate having a configuration substantially corresponding to that of said sole portion, except for a narrowed portion substantially midway between the region of the face portion and the region of the back portion; (d) said club head body having a blind bore devoid of any weighting material extending transversely from the inner end of said cavity and forwardly towards said toe portion; (e) said bore and cavity together with said centrally narrowed sole plate distributing the weight or mass of said head body to the peripheral portion thereof.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-08-12 | 1989-02-11 | 1989-08-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-08-12 | 1993-02-11 | 1993-08-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-08-12 | 1997-02-11 | 1997-08-13 | $7700.00 | Window Closed / Lapsed |