Patent US3578332A successfully refreshed from Google Patents.
US3578332A
Expired / Lapsed
US
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Golf putter with centrally located spheroidal enlargement
Assignee: Individual
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Filing: 1968-09-03
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Granted: 1971-05-11
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Expires: 1988-09-03
Abstract
Abstract This invention relates to a putter which comprises a head formed with a medial, upwardly and rearwardly extending spheroidal enlargement having its center of curvature in line with the upper edges of the heel and toe of said head, and a shaft the axis whereof intersects the transverse axis of said spheroidal enlargement.
Inventors
- 👤 Stanley Benson Caldwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:35
CPC Classifications
A; A63; A63B; A63B53/00; A63B53/04; A63B53/0487; A63B53/0416
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
113 words
A golf putter having an elongated head with toe and heel portions, a planar striking face, a rear surface, a top surface, a curved bottom surface, a spheroidal enlargement disposed centrally between said toe and heel portions, said enlargement projecting upwardly from said top surface and outwardly from said rear surface, said engagement providing an enlarged striking face at the central part of said putter head and being coplanar with said striking face, and a shaft connected to said head at said spheroidal enlargement with the axis of said shaft being at an angle of between 50*and 60*to the longitudinal axis of said head and intersecting the transverse axis of said spheroidal enlargement.
Claim 2
Dependent Claim
113 words
A golf putter having an elongated head with toe and heel portions, a planar striking face, a rear surface, a top surface, a curved bottom surface, a spheroidal enlargement disposed centrally between said toe and heel portions, said enlargement projecting upwardly from said top surface and outwardly from said rear surface, said engagement providing an enlarged striking face at the central part of said putter head and being coplanar with said striking face, and a shaft connected to said head at said spheroidal enlargement with the axis of said shaft being at an angle of between 50*and 60*to the longitudinal axis of said head and intersecting the transverse axis of said spheroidal enlargement.
Claim 3
Dependent Claim
52 words
A putter, as claimed in claim 1, wherein said head is of a composite nature comprising a front plate and a rear body portion, and said front plate and rear body portion are connected at their end portions so as to provide a through slot behind and parallel with the striking face.
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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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |