US3753565A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf ball
Assignee: Individual
•
Filing: 1972-04-10
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Granted: 1973-08-21
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Expires: 1992-04-10
Abstract
Abstract A direction indicator on a golf ball consisting of a triangle the bisecting line of which is on the circumference of an intersecting diametrical plane of the golf ball, the sides of said triangle being concave, curved inwardly of the triangle and each side being of a length equal to about one-fourth of the circumference of said diametrical plane so as to appear as straight sides to a player viewing the golf ball from directly above said triangle; in a modified form the base of the triangle and the bisecting line are utilized.
Inventors
- 👤 M Baker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:22
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3623; A63B69/3655
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
188 words
A golf ball provided on its surface with three indicator lines including a concave curved line defining the base of a triangle at right angles to a diametrical plane of the golf ball, and two intersecting lines extending from said base line, defining the sides of said triangle, and defining a directing element on said diametrical plane pointing along said diametrical plane of said golf ball at right angles to said base line, said base line and said two directing lines being so dimensioned that when viewed from above said three lines appear to the viewer to be straight lines with said base line being at a right angle to the direction indicated by said two intersecting lines, said two directing element lines being the apex of a triangle a bisecting line of which lies on said diametrical plane, the distance between said apex and said base line along said bisecting line being about one-fourth of the circumference of said diametrical plane, said base line of said triangle being concave curved toward said apex, the two side lines of said triangle being concave curving inwardly of the triangle.
Claim 2
Dependent Claim
188 words
A golf ball provided on its surface with three indicator lines including a concave curved line defining the base of a triangle at right angles to a diametrical plane of the golf ball, and two intersecting lines extending from said base line, defining the sides of said triangle, and defining a directing element on said diametrical plane pointing along said diametrical plane of said golf ball at right angles to said base line, said base line and said two directing lines being so dimensioned that when viewed from above said three lines appear to the viewer to be straight lines with said base line being at a right angle to the direction indicated by said two intersecting lines, said two directing element lines being the apex of a triangle a bisecting line of which lies on said diametrical plane, the distance between said apex and said base line along said bisecting line being about one-fourth of the circumference of said diametrical plane, said base line of said triangle being concave curved toward said apex, the two side lines of said triangle being concave curving inwardly of the triangle.
Claim 3
Dependent Claim
35 words
The golf ball specified in claim 1, and said triangle being substantially isosceles, each side having a chord length substantially equal to about one-fourth of the circumference of a diametrical plane intersecting said golf ball.
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) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |