Patent US3738655A successfully refreshed from Google Patents.
US3738655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic pool ball
Assignee: Kidde Inc
•
Filing: 1970-08-17
•
Granted: 1973-06-12
•
Expires: 1990-08-17
Abstract
Abstract A pool ball comprising a spherical body of non-magnetic material and circumferentially extending loops of magnetic material embedded in the body inwardly of the outer surface of the nonmagnetic material but outwardly of a portion of the non-magnetic material, the body having its center of mass located at its geometric center.
Inventors
- 👤 E Feddick
- 👤 G Wassman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:03
CPC Classifications
F; F17; F17D; F17D5/00; A; A63; A63D; A63D15/00; F16; F16K; F16K17/00; F16K17/20; F16K17/22; F16K17/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
178 words
A magnetically attractable pool cue ball adapted for use with other pool balls in playing a pool game and having a diameter corresponding to the diameter of the other pool balls, said cue ball comprising a spherical body having a smooth, continuous outer surface, said body being composed of molded, non-magnetic resinous material within which is embedded magnetically attractable material, said magnetically attractable material comprising a spherical cage composed of a plurality of uniform, curvilinear metal loops uniformly spaced from one another circumferentially of said cage and extending along lines which intersect at common polar locations of said cage, said cage being concentric with the geometric center of said body and being of such diameter relative to the diameter of said body that said cage occupies a position radially remote from the center of said body and adjacent but wholly inwardly of the outer surface of said body and at a uniform depth from the outer surface of said body, said non-magnetic resinous material being identical throughout said body and being adhered to and completely enveloping said loops.
Claim 2
Dependent Claim
178 words
A magnetically attractable pool cue ball adapted for use with other pool balls in playing a pool game and having a diameter corresponding to the diameter of the other pool balls, said cue ball comprising a spherical body having a smooth, continuous outer surface, said body being composed of molded, non-magnetic resinous material within which is embedded magnetically attractable material, said magnetically attractable material comprising a spherical cage composed of a plurality of uniform, curvilinear metal loops uniformly spaced from one another circumferentially of said cage and extending along lines which intersect at common polar locations of said cage, said cage being concentric with the geometric center of said body and being of such diameter relative to the diameter of said body that said cage occupies a position radially remote from the center of said body and adjacent but wholly inwardly of the outer surface of said body and at a uniform depth from the outer surface of said body, said non-magnetic resinous material being identical throughout said body and being adhered to and completely enveloping said loops.
References Cited (Backward Citations)
US113272A
Cited
US700658A
Cited
US705359A
Cited
GB191007902A
Cited
US1221181A
Cited
US1339992A
Cited
US2277057A
Cited
US2939709A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-11 | 1976-12-11 | 1977-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-11 | 1980-12-11 | 1981-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-11 | 1984-12-11 | 1985-06-12 | $7700.00 | Window Closed / Lapsed |