Patent US4913438A successfully refreshed from Google Patents.
US4913438A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf club
Assignee: PACIFIC GOLF HOLDINGS Inc
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Filing: 1988-07-22
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Granted: 1990-04-03
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Expires: 2008-07-22
Abstract
Abstract A golf putter has a head defining a ball striking front face, a bottom surface, a top surface, a rear surface, a heel and a toe; and includes: (a) the head top surface having first, second and third regions respectively near the toe, mid-extent of the head and heel, (b) the first and third regions having two recess respectively sunk downwardly therein, (c) and metallic weights received downwardly in such recesses, the outlines of said recesses being visible from above said top surface. The third region may define a recess in which a forward marker or markers and a virtual ball section, are located, the marker or markers and virtual ball section located to be downwardly visible.
Inventors
- 👤 Donald A. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:30
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0416; A63B53/047; A63B53/0487; A63B60/00; A63B69/00; A63B69/36; A63B69/3676; A63B69/3685; A63B71/00; A63B71/06; A63B2071/0694; A63B2225/00; A63B2225/02; A63B53/02; A63B53/021
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
220 words
In a golf putter having a head defining a ball striking front face, a bottom surface, a top surface, a rear surface, a heel and a toe, the improvement comprising: (a) the top surface having first, second and third regions respectively near the toe, mid-extent of the head and heel, (b) each of the first and third regions having a recess sunk vertically therein, (c) and metallic weights received in said region top surface so that the outlines of said recesses and weights are confined within said regions, the receses having bottom walls spaced above the bottom surface of the head, (d) the head defining a ledge proximate said second region, the ledge having a top surface extending generally at the levels of the lowermost portions of said weights, and including a main marker on the ledge directed toward the front face of the head, said marker being located at substantially the mid-point between said recesses, (e) and the head defining a forward upright wall that extends between and forwardly of said first and third regions and above their levels, the putter having a hosel integral with said wall at a location above the top levels of said first and third regions, (f) the weights characterized by bottom surfaces substantially in a horizontal plane defined by the ledge top surface.
Claim 2
Dependent Claim
220 words
In a golf putter having a head defining a ball striking front face, a bottom surface, a top surface, a rear surface, a heel and a toe, the improvement comprising: (a) the top surface having first, second and third regions respectively near the toe, mid-extent of the head and heel, (b) each of the first and third regions having a recess sunk vertically therein, (c) and metallic weights received in said region top surface so that the outlines of said recesses and weights are confined within said regions, the receses having bottom walls spaced above the bottom surface of the head, (d) the head defining a ledge proximate said second region, the ledge having a top surface extending generally at the levels of the lowermost portions of said weights, and including a main marker on the ledge directed toward the front face of the head, said marker being located at substantially the mid-point between said recesses, (e) and the head defining a forward upright wall that extends between and forwardly of said first and third regions and above their levels, the putter having a hosel integral with said wall at a location above the top levels of said first and third regions, (f) the weights characterized by bottom surfaces substantially in a horizontal plane defined by the ledge top surface.
Claim 3
Dependent Claim
11 words
The improvement of claim 1 said weights are polygonal in outline.
Claim 4
Dependent Claim
33 words
The improvement of claim 1 wherein the head consists of a first metal in which said recesses are formed, and the weights consist of other metal which is denser than the first metal.
Claim 5
Dependent Claim
25 words
The improvement of claim 1 wherein the first metal consists of aluminum or aluminum alloy, and the other metal consists of copper or copper alloy.
Claim 6
Dependent Claim
32 words
The improvement of claim 1 including additional forward indicating markers distributed at the ledge uppermost surface between the main marker and one recess, and between the main marker and the other recess.
Claim 7
Dependent Claim
11 words
The improvement of claim 5 wherein said markers define a semi-circle.
Claim 8
Dependent Claim
29 words
The improvement of claim 1 wherein the putter has a shaft defining an axis which intersects the head substantially closer to said third region than to said first region.
Claim 9
Dependent Claim
25 words
The improvement of claim 1 wherein the weight in said first region is substantially heavier than the weight in said third region of the head.
Claim 10
Dependent Claim
225 words
In a golf putter having a head defining a ball striking front face, a bottom surface, a top surface, a rear surface, a heel and a toe, the improvement comprising: (a) the top surface having first, second and third regions respectively near the toe, mid-extent of the head and heel, (b) each of the first and third regions having a recess sunk vertically therein, (c) and metallic weights received in said recesses, each recess extending below the corresponding region top surface so that the outline of said recesses and weights are confined within said regions, the recesses having bottom walls spaced above the bottom surface of the head, (d) the head defining a ledge proximate said second region, the ledge having a top surface extending generally at the levels of the lowermost portions of said weights, and including a main marker on the ledge directed toward the front face of the head, said marker being located at substantially the mid-point between said recesses, (e) and the head defining a forward upright wall that extends between and forwardly of said first and third regions and above their levels, the putter having a hosel integral with said wall at a location above the top levels of said first and third regions, (f) the bottom surface of the head being downwardly convex between said heel and said toe.
Claim 11
Dependent Claim
225 words
In a golf putter having a head defining a ball striking front face, a bottom surface, a top surface, a rear surface, a heel and a toe, the improvement comprising: (a) the top surface having first, second and third regions respectively near the toe, mid-extent of the head and heel, (b) each of the first and third regions having a recess sunk vertically therein, (c) and metallic weights received in said recesses, each recess extending below the corresponding region top surface so that the outline of said recesses and weights are confined within said regions, the recesses having bottom walls spaced above the bottom surface of the head, (d) the head defining a ledge proximate said second region, the ledge having a top surface extending generally at the levels of the lowermost portions of said weights, and including a main marker on the ledge directed toward the front face of the head, said marker being located at substantially the mid-point between said recesses, (e) and the head defining a forward upright wall that extends between and forwardly of said first and third regions and above their levels, the putter having a hosel integral with said wall at a location above the top levels of said first and third regions, (f) the bottom surface of the head being downwardly convex between said heel and said toe.
Claim 12
Dependent Claim
228 words
In a golf putter having a head defining a ball striking front face, a bottom surface, a top surface, a rear surface, a heel and a toe, the improvement comprising: (a) the top surface having first, second and third regions respectively near the toe, mid-extent of the head and heel, (b) each of the first and third regions having a recess sunk vertically therein, (c) and metallic weights received in said recesses, each recess extending below the corresponding region top surface so that the outlines of said recesses and weights are confined within said regions, the recesses having bottom walls spaced above the bottom surface of the head, (d) the head defining a ledge proximate said second region, the ledge having a top surface extending generally at the levels of the lowermost portions of said weights, and including a main marker on the ledge directed toward the front face of the head, said marker being located at substantially the mid-point between said recesses, (e) and the head defining a forward upright wall that extends between and forwardly of said first and third regions and above their levels, the putter having a hosel integral with said wall at a location above the top levels of said first and third regions, (f) and including forward indicating means at, and visible at, the top surfaces of said first and third regions.
Claim 13
Dependent Claim
228 words
In a golf putter having a head defining a ball striking front face, a bottom surface, a top surface, a rear surface, a heel and a toe, the improvement comprising: (a) the top surface having first, second and third regions respectively near the toe, mid-extent of the head and heel, (b) each of the first and third regions having a recess sunk vertically therein, (c) and metallic weights received in said recesses, each recess extending below the corresponding region top surface so that the outlines of said recesses and weights are confined within said regions, the recesses having bottom walls spaced above the bottom surface of the head, (d) the head defining a ledge proximate said second region, the ledge having a top surface extending generally at the levels of the lowermost portions of said weights, and including a main marker on the ledge directed toward the front face of the head, said marker being located at substantially the mid-point between said recesses, (e) and the head defining a forward upright wall that extends between and forwardly of said first and third regions and above their levels, the putter having a hosel integral with said wall at a location above the top levels of said first and third regions, (f) and including forward indicating means at, and visible at, the top surfaces of said first and third regions.
Claim 14
Dependent Claim
238 words
In a golf putter having a head defining a ball striking front face, a bottom surface, a top surface, a rear surface, a heel and a toe, the improvement comprising: (a) the top surface having first, second and third regions respectively near the toe, mid-extent of the head and heel, (b) each of the first and third regions having a recess sunk vertically therein, (c) and metallic weights received in said recesses, each recess extending below the corresponding region top surface so that the outlines of said recesses and weights are confined within said regions, the recesses having bottom walls spaced above the bottom surface of the head, (d) the head defining a ledge proximate said second region, the ledge having a top surface extending generally at the levels of the lowermost portions of said weights, and including a main marker on the ledge directed toward the front face of the head, said marker being located at substantially the mid-point between said recesses, (e) and the head defining a forward upright wall that extends between and forwardly of said first and third regions and above their levels, the putter having a hosel integral with said wall at a location above the top levels of said first and third regions, (f) and wherein the weights are characterized by one of the following: (i) rearward taper (ii) L-shape in upwardly facing outline (iii) tapered, respectively, toward the toe and heel.
Claim 15
Dependent Claim
238 words
In a golf putter having a head defining a ball striking front face, a bottom surface, a top surface, a rear surface, a heel and a toe, the improvement comprising: (a) the top surface having first, second and third regions respectively near the toe, mid-extent of the head and heel, (b) each of the first and third regions having a recess sunk vertically therein, (c) and metallic weights received in said recesses, each recess extending below the corresponding region top surface so that the outlines of said recesses and weights are confined within said regions, the recesses having bottom walls spaced above the bottom surface of the head, (d) the head defining a ledge proximate said second region, the ledge having a top surface extending generally at the levels of the lowermost portions of said weights, and including a main marker on the ledge directed toward the front face of the head, said marker being located at substantially the mid-point between said recesses, (e) and the head defining a forward upright wall that extends between and forwardly of said first and third regions and above their levels, the putter having a hosel integral with said wall at a location above the top levels of said first and third regions, (f) and wherein the weights are characterized by one of the following: (i) rearward taper (ii) L-shape in upwardly facing outline (iii) tapered, respectively, toward the toe and heel.
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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) | 1993-04-02 | 1993-10-02 | 1994-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-04-02 | 1997-10-02 | 1998-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-04-02 | 2001-10-02 | 2002-04-03 | $7700.00 | Window Closed / Lapsed |