US4741535A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf putter
Assignee: Individual
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Filing: 1986-02-26
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Granted: 1988-05-03
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Expires: 2006-02-26
Abstract
Abstract A golf putter for use on a regulation golf course having weighted toe and heel portions and alignment shafts projecting rearward from the toe and heel of the putter. The alignment shafts may be about 1 to about 6 inches in length and about 1/3 to about 1 inch in width. The alignment shafts are perpendicular to the ball striking surface of the club head and are parallel to each other. The bottom surface of each of the alignment shaft slope slightly upward in a arc shaped line to allow striking of the golf ball more effectively. The distance between the center of the two shafts is approximately equal to the diameter of a golf hole. The putter also has a center alignment line located at the approximate center of the weight distribution of the head of the putter. This line, along with the two alignment shafts, assists the golfer in aligning his or her putt and reduces the tendency of the putter to rotate upon striking a ball off center.
Inventors
- 👤 Robert L. Leonhardt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:18
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0487; A63B53/0433; A63B53/0441
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
310 words
A golf putter with a head connected thereto, the putter head comprising: (a) a heel portion comprising 15-25 percent of the width of the putter head and 30-50 percent of the weight of the putter head; (b) a center portion comprising 10-45 percent of the weight of the putter head and 40-75 percent of the width of the putter head and is divided into a front portion equal in height to the club head with a depth of 1/16 of an inch to 3/4 of an inch and a rear portion whose height is 1/16 of an inch to 3/4 of an inch and whose depth is 1/8 of an inch to 2 inches; (c) a toe portion comprising 5-25 percent of the width of the putter head and 25-40 percent of the weight of the putter head; (d) a smooth bottom surface; (e) a ball striking surface for striking a golf ball; (f) a first and a second alignment shaft connected to the toe and the heel portions, respectively, of the putter head, the bottom surface of the alignment shafts being above the bottom surface of the putter head, each shaft being directed rearward from the toe and the heel portion of the putter head, each shaft being from 1 to 6 inches in length and 1/3 of an inch in width, each shaft having an arcuate top and bottom surface arching upward along its length, each shaft having a centered marked line on the top surface perpendicular to the ball striking surface and said shafts being spaced apart approximately the same distance as the diameter of a golf hole; and (g) a third alignment mark on the top surface of the putter head extending at a right angle to the planar ball striking surface and located at approximately the center of the weight distribution of the putter head.
Claim 2
Dependent Claim
310 words
A golf putter with a head connected thereto, the putter head comprising: (a) a heel portion comprising 15-25 percent of the width of the putter head and 30-50 percent of the weight of the putter head; (b) a center portion comprising 10-45 percent of the weight of the putter head and 40-75 percent of the width of the putter head and is divided into a front portion equal in height to the club head with a depth of 1/16 of an inch to 3/4 of an inch and a rear portion whose height is 1/16 of an inch to 3/4 of an inch and whose depth is 1/8 of an inch to 2 inches; (c) a toe portion comprising 5-25 percent of the width of the putter head and 25-40 percent of the weight of the putter head; (d) a smooth bottom surface; (e) a ball striking surface for striking a golf ball; (f) a first and a second alignment shaft connected to the toe and the heel portions, respectively, of the putter head, the bottom surface of the alignment shafts being above the bottom surface of the putter head, each shaft being directed rearward from the toe and the heel portion of the putter head, each shaft being from 1 to 6 inches in length and 1/3 of an inch in width, each shaft having an arcuate top and bottom surface arching upward along its length, each shaft having a centered marked line on the top surface perpendicular to the ball striking surface and said shafts being spaced apart approximately the same distance as the diameter of a golf hole; and (g) a third alignment mark on the top surface of the putter head extending at a right angle to the planar ball striking surface and located at approximately the center of the weight distribution of the putter head.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-05-03 | 1991-11-02 | 1992-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-05-03 | 1995-11-02 | 1996-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-05-03 | 1999-11-02 | 2000-05-03 | $7700.00 | Window Closed / Lapsed |