Patent US4046377A successfully refreshed from Google Patents.
US4046377A
Expired / Lapsed
US
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Tennis racquet
Assignee: REGENT SPORTS Corp
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Filing: 1974-02-14
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Granted: 1977-09-06
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Expires: 1994-02-14
Abstract
Abstract A preformed bridge element has concave curved sides to embrace the inner aspects of a metal racquet frame, and has a locating pin extending laterally from each side to engage openings in the frame sides, the stringing eyes extending upwardly from the top of the bridge bar being defined by a sinuous element, the ends of which are secured to the locating pin.
Inventors
- 👤 Joseph N. Khazzam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:38
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/12; A63B49/022; A63B49/03; A63B60/00; A63B49/028
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
150 words
A strung racquet frame of elongated hollow tubing comprising a strung head portion, a throat portion, and a handle portion, the space between the frame sides at the throat portion being closed by a generally trapezoidal bridge member which is embraced by the frame sides and engaged by the frame stringing, a cross-bar embedded within and extending laterally of the bridge member, said cross-bar having arms extending outwardly therefrom, into, within, and only upwardly along the inner aspect of the hollow tubing, the bridge member and the interengagement of the cross-bar component thereof with the frame throat restraining the frame sides against lateral movements towards and away from each other, the bridge member and cross-bar being otherwise unsecured to the frame, and the stringing through the frame and the bridge member urging the bridge member upwardly and the embedded cross-bar and arms into more positive engagement with the frame sides.
Claim 2
Dependent Claim
150 words
A strung racquet frame of elongated hollow tubing comprising a strung head portion, a throat portion, and a handle portion, the space between the frame sides at the throat portion being closed by a generally trapezoidal bridge member which is embraced by the frame sides and engaged by the frame stringing, a cross-bar embedded within and extending laterally of the bridge member, said cross-bar having arms extending outwardly therefrom, into, within, and only upwardly along the inner aspect of the hollow tubing, the bridge member and the interengagement of the cross-bar component thereof with the frame throat restraining the frame sides against lateral movements towards and away from each other, the bridge member and cross-bar being otherwise unsecured to the frame, and the stringing through the frame and the bridge member urging the bridge member upwardly and the embedded cross-bar and arms into more positive engagement with the frame sides.
Claim 3
Dependent Claim
71 words
A racquet frame as in claim 1, wherein the arms extending from the cross-bar embedded within the bridge, have free end portions of substantially one-half inch in length extending beyond the bridge body and upwardly at an obtuse angle therefrom, and said end portions extend upwardly into the hollow tubing and interengage with the frame sides, thereby to maintain the bridge member within the frame in the absence of other securement.
Claim 4
Dependent Claim
56 words
A strung racquet frame as in claim 1, wherein the cross-bar is generally U-shaped, the base being embedded within the bridge, and the arms extending upwardly and outwardly therefrom at an angle obtuse with respect to the base, whereby to maintain the bridge between the frame sides at the throat in the absence of other securement.
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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) | 1980-09-05 | 1981-03-07 | 1981-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-05 | 1985-03-07 | 1985-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-05 | 1989-03-07 | 1989-09-06 | $7700.00 | Window Closed / Lapsed |