US3708172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf putter
Assignee: Individual
•
Filing: 1971-03-15
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Granted: 1973-01-02
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Expires: 1991-03-15
Abstract
Abstract A golf putter has a generally vertically extending hole of circular cross section extending entirely through the head between the top wall and bottom wall. The hole splits a sighting mark on the top surface of the putter head into forward and rearward segments and divides the head into substantially equal masses in order to counterbalance tendencies of the head to twist out of position upon misaligned contact between a golf ball and the putter striking face. The hole may be used as a visual alignment aid and has a diameter sized for use as a quick check ball gauge and roundness detector.
Inventors
- 👤 J Rango
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:34
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0487; A63B47/00; A63B47/008; A63B53/0441; A63B69/00; A63B69/36; A63B53/0433; A63B53/0437; A63B60/00; A63B60/50
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
239 words
A golf putter with a hole through its head, comprising: a. a golf club head having a top wall, bottom wall, rear wall, striking face, heel portion and toe portion; b. a vertically aligned hole in the shape of a cylinder having a predetermined diameter extending completely through the club head, said diameter being vertically continuous from said top wall to said bottom wall and located approximately centrally between the heel portion and toe portion and between said front and rear walls, the hole being fully open and unobstructed so that an object of the same or smaller diameter can pass entirely through the hole in either direction; and, c. a sighting mark formed on the club head top wall and split into forward and rearward segments by the hole so that both the hole and sighting mark segments may be viewed in aiding the golfer to line up the ball, d. said club head being substantially symmetrical so that the mass on the toe side of the hole is equal to the mass on the heel side of the hole in order to counterbalance and minimize twisting tendencies of the club head upon misaligned contact between the striking face and the golf ball, and, e. said predetermined diameter being equal to or slightly larger than the diameter of a given golf ball, permitting the hole to be used as a quick check ball gauge and ball roundness detector.
Claim 2
Dependent Claim
239 words
A golf putter with a hole through its head, comprising: a. a golf club head having a top wall, bottom wall, rear wall, striking face, heel portion and toe portion; b. a vertically aligned hole in the shape of a cylinder having a predetermined diameter extending completely through the club head, said diameter being vertically continuous from said top wall to said bottom wall and located approximately centrally between the heel portion and toe portion and between said front and rear walls, the hole being fully open and unobstructed so that an object of the same or smaller diameter can pass entirely through the hole in either direction; and, c. a sighting mark formed on the club head top wall and split into forward and rearward segments by the hole so that both the hole and sighting mark segments may be viewed in aiding the golfer to line up the ball, d. said club head being substantially symmetrical so that the mass on the toe side of the hole is equal to the mass on the heel side of the hole in order to counterbalance and minimize twisting tendencies of the club head upon misaligned contact between the striking face and the golf ball, and, e. said predetermined diameter being equal to or slightly larger than the diameter of a given golf ball, permitting the hole to be used as a quick check ball gauge and ball roundness detector.
Claim 3
Dependent Claim
27 words
The structure according to claim 1, wherein; the rear wall tapers to a point that coincides with the sighting mark to further enhance lining up the ball.
Claim 4
Dependent Claim
25 words
The structure according to claim 1, wherein; said predetermined diameter is 1.680 inches or the minimum acceptable diameter established by the United States Golf Association.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-02 | 1976-07-03 | 1977-01-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-02 | 1980-07-03 | 1981-01-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-02 | 1984-07-03 | 1985-01-02 | $7700.00 | Window Closed / Lapsed |