Patent US3989248A successfully refreshed from Google Patents.
US3989248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club having insert capable of elastic flexing
Assignee: Wilson Sporting Goods Co
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Filing: 1976-02-20
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Granted: 1976-11-02
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Expires: 1996-02-20
Abstract
Abstract A golf club of the wood type in which the ball striking surface of the head is recessed to receive a metal insert which is secured therein, the insert having a front grooved surface which is flush with and forms a part of the striking surface of the club, the insert having an open-ended passageway extending therethrough from top to bottom so that the front grooved surface is capable of elastic flexing relative to the remainder of the insert.
Inventors
- 👤 Daniel N. Campau
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:10
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0416; A63B53/0466; A63B60/00; A63B53/042; A63B53/0425; A63B53/0458; A63B53/0462; A63B60/52
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
70 words
A gold club of the wood type comprising a relatively massive enlarged head having a ball striking surface, said surface having a recess therein, and a metal insert secured within said recess and having a front grooved surface forming part of said ball striking surface, said insert having a hollow interior defining an open-ended passageway extending therethrough from top to bottom to facilitate elastic flexing of said front grooved surface.
Claim 2
Dependent Claim
70 words
A gold club of the wood type comprising a relatively massive enlarged head having a ball striking surface, said surface having a recess therein, and a metal insert secured within said recess and having a front grooved surface forming part of said ball striking surface, said insert having a hollow interior defining an open-ended passageway extending therethrough from top to bottom to facilitate elastic flexing of said front grooved surface.
Claim 3
Dependent Claim
16 words
The golf club of claim 1 in which said insert is adhesively secured within said recess.
Claim 4
Dependent Claim
21 words
The golf club of claim 2 in which said insert is secured within said recess by means of an epoxy adhesive.
Claim 5
Dependent Claim
28 words
The golf club of claim 1 in which the upper and bottom edges of said insert are spaced slightly from the upper and lower walls defining said recess.
Claim 6
Dependent Claim
16 words
The golf club of claim 1 in which said passageway is substantially rectangular in horizontal cross-section.
Claim 7
Dependent Claim
26 words
The golf club of claim 1 in which said insert is composed of a metal having a minimum yield strength of 150,000 pounds per square inch.
Claim 8
Dependent Claim
18 words
The golf club of claim 6 in which said insert is composed of a precipitation hardening stainless steel.
Claim 9
Dependent Claim
16 words
The golf club of claim 6 in which said insert is composed of a beryllium-copper alloy.
Claim 10
Dependent Claim
112 words
A golf club of the wood type comprising a wooden head having a striking face on its front surface, said front surface having a recess formed therein, a polygonal metal insert having parallel substantially horizontal upper and lower edges and being adhesively secured within said recess and having a grooved outer surface forming a portion of said striking face, said insert being composed of a metal having a yield strength of at least 150,000 pounds per square inch, said insert having a hollow interior extending the full vertical dimension of said insert, said upper and lower edges of said insert being spaced slightly from the upper and lower walls defining said recess.
Claim 11
Dependent Claim
112 words
A golf club of the wood type comprising a wooden head having a striking face on its front surface, said front surface having a recess formed therein, a polygonal metal insert having parallel substantially horizontal upper and lower edges and being adhesively secured within said recess and having a grooved outer surface forming a portion of said striking face, said insert being composed of a metal having a yield strength of at least 150,000 pounds per square inch, said insert having a hollow interior extending the full vertical dimension of said insert, said upper and lower edges of said insert being spaced slightly from the upper and lower walls defining said recess.
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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) | 1979-11-02 | 1980-05-03 | 1980-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-11-02 | 1984-05-03 | 1984-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-11-02 | 1988-05-03 | 1988-11-02 | $7700.00 | Window Closed / Lapsed |