US5083778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club putter head
Assignee: Individual
•
Filing: 1990-06-27
•
Granted: 1992-01-28
•
Expires: 2010-06-27
Abstract
Abstract A golf putter having a novel putter head is disclosed. The putter head includes a body of generally rigid material and a resilient laminated striking face which is secured to a club face undersurface defined by the putter head body. The laminated striking face includes at least an outer layer of resilient material having an outer surface for striking a golf ball and an inner layer of resilient material which is secured against the club face undersurface and which has a hardness which is less than that of the outer layer. The resilient outer layer preferably has a hardness which is equal to or greater than the hardness of a golf ball which is generally greater than about 90 durometers A.
Inventors
- 👤 Michael B. Douglass
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:30
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0487; A63B53/0416; A63B53/042; A63B53/0425; Y; Y10; Y10S; Y10S273/00; Y10S273/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A golf putter comprising: a club shaft having a gripping portion at one end of said shaft; a putter head attached to the other end of said shaft, said putter head including a body defining a club face undersurface and a yieldable laminated striking face secured to said body against said undersurface, said laminated striking face comprising an outer resilient layer, an inner resilient layer, and an intermediate layer between said inner and outer layers, said laminated striking face being yieldable to absorb energy when struck by a ball so as to achieve controlled dampening of the struck ball, said intermediate layer being viscous to enable said inner and said outer resilient layers to move laterally relative to one another when said outer resilient layer is struck, whereby the viscous layer absorbs shear forces associated with said struck ball.
Claim 2
Dependent Claim
139 words
A golf putter comprising: a club shaft having a gripping portion at one end of said shaft; a putter head attached to the other end of said shaft, said putter head including a body defining a club face undersurface and a yieldable laminated striking face secured to said body against said undersurface, said laminated striking face comprising an outer resilient layer, an inner resilient layer, and an intermediate layer between said inner and outer layers, said laminated striking face being yieldable to absorb energy when struck by a ball so as to achieve controlled dampening of the struck ball, said intermediate layer being viscous to enable said inner and said outer resilient layers to move laterally relative to one another when said outer resilient layer is struck, whereby the viscous layer absorbs shear forces associated with said struck ball.
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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) | 1995-01-27 | 1995-07-29 | 1996-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-01-27 | 1999-07-29 | 2000-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-01-27 | 2003-07-29 | 2004-01-28 | $7700.00 | Window Closed / Lapsed |