Patent US3955819A successfully refreshed from Google Patents.
US3955819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf putter
Assignee: Individual
•
Filing: 1975-11-03
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Granted: 1976-05-11
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Expires: 1995-11-03
Abstract
Abstract A golf putter having a sighting guide in the form of an elongated groove on the top of the club head and a plurality of channels on the bottom of the club head having a sloping angle from the face of the club angling downward toward the rear of the club so as to give an upward pressure to the club if it strikes the ground.
Inventors
- 👤 Bernard A. Yokich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 09:29
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/007; A63B53/04; A63B53/0408; A63B53/0433; A63B53/0441; A63B60/00; A63B60/52; A63B53/02; A63B53/021
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
80 words
A golf putter having a plurality of lifting grooves in its bottom surface comprising: a. a handle; b. a shaft; c. a putting head connected by said shaft to said handle; and, d. a bottom surface on said putting head consisting of a plurality of lands and grooves in which the grooves, extending from the back toward the striking face of the club, have an angle of inclination in the range of 4° to 8° with respect to the lands.
Claim 2
Dependent Claim
80 words
A golf putter having a plurality of lifting grooves in its bottom surface comprising: a. a handle; b. a shaft; c. a putting head connected by said shaft to said handle; and, d. a bottom surface on said putting head consisting of a plurality of lands and grooves in which the grooves, extending from the back toward the striking face of the club, have an angle of inclination in the range of 4° to 8° with respect to the lands.
Claim 3
Dependent Claim
34 words
A golf putter according to claim 1 wherein there are six grooves and seven lands with the depth of the grooves at the striking face being in the range of 5 to 8 mm.
Claim 4
Dependent Claim
24 words
A golf putter according to claim 1 wherein the top surface of said putting head has a rearwardly extending portion carrying a sighting groove.
Claim 5
Dependent Claim
39 words
A golf putter according to claim 3 wherein there are six grooves in the bottom surface of said putting head and said sighting groove is aligned with the third bottom groove from the position of attachment of said shaft.
Claim 6
Dependent Claim
20 words
A golf putter according to claim 1 wherein said grooves are rectangular in cross section and about 5 mm. wide.
Claim 7
Dependent Claim
26 words
A golf putter according to claim 1 wherein the bottom of said striking face has a curvature with a radius of about 3 to 4 mm.
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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) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |