US3920658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated tennis string and process for coating
Assignee: Individual
•
Filing: 1973-11-23
•
Granted: 1975-11-18
•
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 02:52
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)
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Cited
US1279718A
Cited
US2401291A
Cited
US3120144A
Cited
US3330689A
Cited
US3738096A
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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) | 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 |