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US3920658A
Expired / Lapsed
US
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Coated tennis string and process for coating
Assignee: Individual
•
Filing: 1973-11-23
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Granted: 1975-11-18
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Expires: 1993-11-23
Abstract
Abstract A tennis string of gut, nylon, or polyester is coated with skidproof material to obtain a superior string capable of imparting more spin to a tennis ball with less effort by the player.
Inventors
- 👤 Martin James Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:41
CPC Classifications
A; A63; A63B; A63B51/00; A63B51/02; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/294; Y10T428/296; Y10T428/2964; Y10T428/2967; Y10T428/2969
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
29 words
A TENNIS STRING OF GUT, NYLON, OR POLYESTERM WHICH IS COATED WITH A COATING RESIN CONTAINING SUFFICIENT FINE, GRANULAR MATERIAL TO SIGNIFICANTLY INCREASE THE FRICTION OF STRING AGAINST BALL
Claim 2
Dependent Claim
29 words
A TENNIS STRING OF GUT, NYLON, OR POLYESTERM WHICH IS COATED WITH A COATING RESIN CONTAINING SUFFICIENT FINE, GRANULAR MATERIAL TO SIGNIFICANTLY INCREASE THE FRICTION OF STRING AGAINST BALL
Claim 3
Dependent Claim
52 words
A process for increasing the effectiveness of a tennis string in imparting spin to a tennis ball comprising applying a soft, skid-proof, elastomeric material, or a coating resin containing sufficient fine, granular material to significantly increase the friction of the string against the ball, to the string after the racquet is strung.
Claim 4
Dependent Claim
52 words
A process for increasing the effectiveness of a tennis string in imparting spin to a tennis ball comprising applying a soft, skid-proof, elastomeric material, or a coating resin containing sufficient fine, granular material to significantly increase the friction of the string against the ball, to the string after the racquet is strung.
Claim 5
Dependent Claim
14 words
The process of claim 2, wherein the skid-proof coating is a soft, elastomeric material.
Claim 6
Dependent Claim
29 words
The process of claim 2, wherein the skid-proof coating is a coating resin containing sufficient fine, granular material to significantly increase the friction of the string against the ball.
References Cited (Backward Citations)
US328004A
Cited
US1279718A
Cited
US2401291A
Cited
US3120144A
Cited
US3330689A
Cited
US3738096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-11-17 | 1979-05-19 | 1979-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-17 | 1983-05-19 | 1983-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-17 | 1987-05-19 | 1987-11-18 | $7700.00 | Window Closed / Lapsed |