Patent US4874078A successfully refreshed from Google Patents.
Patent US3976299A successfully refreshed from Google Patents.
US3976299A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club head apparatus
Assignee: Individual
•
Filing: 1974-12-16
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Granted: 1976-08-24
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Expires: 1994-12-16
Abstract
Abstract Golf club head apparatus is disclosed which includes a curved top portion with a concave portion beneath the curved top portion and internally adjustable weights are disposed adjacent the face of the club head.
Inventors
- 👤 Philip E. Lawrence
- 👤 Boris M. Plesinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:17
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0433; A63B53/0458; A63B53/0466; A63B60/00; A63B2225/00; A63B2225/01; A63B53/045; A63B53/0462
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
Golf club head apparatus, comprising, in combination: a face having an upper portion and a lower portion; sole means extending rearwardly from the lower portion of the face; an inner side portion and an outer side portion extending rearwardly from and adjacent to the face and upwardly from the sole means; a substantially continuous convex surface extending rearwardly from the upper portion of the face and inwardly from the inner and outer side portions and forming the upper surface of the club head; a concave surface, including an inner recess between the inner and outer side portions, extending substantially continuously upwardly and rearwardly from the sole means to the convex surface, the juncture of the convex surface and the concave surface defining an edge, said edge extending in a curve between the outer side portion and the inner side portion; and weight means disposed in the head adjacent the inner and outer side portions for adjusting the balance of the club head.
Claim 2
Dependent Claim
162 words
Golf club head apparatus, comprising, in combination: a face having an upper portion and a lower portion; sole means extending rearwardly from the lower portion of the face; an inner side portion and an outer side portion extending rearwardly from and adjacent to the face and upwardly from the sole means; a substantially continuous convex surface extending rearwardly from the upper portion of the face and inwardly from the inner and outer side portions and forming the upper surface of the club head; a concave surface, including an inner recess between the inner and outer side portions, extending substantially continuously upwardly and rearwardly from the sole means to the convex surface, the juncture of the convex surface and the concave surface defining an edge, said edge extending in a curve between the outer side portion and the inner side portion; and weight means disposed in the head adjacent the inner and outer side portions for adjusting the balance of the club head.
Claim 3
Dependent Claim
20 words
The apparatus of claim 1 in which the sole means includes a pair of apertures for receiving the weight means.
Claim 4
Dependent Claim
26 words
The apparatus of claim 2 in which the apertures are tapped and the weight means includes threaded plugs to provide threaded engagement with the tapped apertures.
Claim 5
Dependent Claim
25 words
The apparatus of claim 3 in which the weight means further includes insert means for varying the location of the threaded plugs in the apertures.
Claim 6
Dependent Claim
21 words
The apparatus of claim 4 in which the inner recess extends outwardly, rearwardly, beneath and substantially coextensive with the convex surface.
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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) | 1979-08-24 | 1980-02-23 | 1980-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-24 | 1984-02-23 | 1984-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-24 | 1988-02-23 | 1988-08-24 | $7700.00 | Window Closed / Lapsed |