US3582073A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cast metal racquet with offcenter string guides
Assignee: Midland Merchandise Corp
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Filing: 1968-06-20
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Granted: 1971-06-01
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Expires: 1988-06-20
Abstract
Abstract A high strength cast metal racquet wherein string guides protrude into the striking area of the racquet frame but are offset from the plane of the strings. The string guides contain apertures perpendicular to the plane of the strings. The string guides permit the strings to be strung in a plane bisecting the frame of the racquet.
Inventors
- 👤 Samuel H Melnick
- 👤 Samuel W Landsman
- 👤 Walter A Stromski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:24
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/12; A63B49/022; A63B49/03; A63B49/08; A63B60/00; A63B49/028; A63B60/06; A63B60/08; A63B60/10; A63B60/48
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
83 words
A high strength cast metal racquet having a closed frame with first and second spaced generally parallel handle portions extending from said frame, said frame including a plurality of tabs defining the periphery of a striking plane, said tabs being disposed alternately on opposite sides of said striking plane, apertures formed in said tabs perpendicular to said striking plane whereby the stringing of the racquet outwardly through said apertures from said striking plane results in forming the stringing flatwise in said striking plane.
Claim 2
Dependent Claim
83 words
A high strength cast metal racquet having a closed frame with first and second spaced generally parallel handle portions extending from said frame, said frame including a plurality of tabs defining the periphery of a striking plane, said tabs being disposed alternately on opposite sides of said striking plane, apertures formed in said tabs perpendicular to said striking plane whereby the stringing of the racquet outwardly through said apertures from said striking plane results in forming the stringing flatwise in said striking plane.
Claim 3
Dependent Claim
38 words
The racquet of claim 1 wherein the said first and second handle portions have inwardly directed overlapping tabs and securing means are provided for interlocking said overlapping tabs thereby retaining said handle portions in the spaced parallel relationship.
Claim 4
Dependent Claim
29 words
The racquet of claim 1 wherein said frame comprises a generally T-section structure with the leg of the T-section projecting inwardly toward said striking plane and defining said tabs.
Claim 5
Dependent Claim
83 words
For use in a game-playing strung racquet having a handle, a high strength cast metal looped frame defining a striking area lying in a plane bisecting the frame, said frame having cast through apertures each having an end opening into said plane at least at the portion of each aperture closest to the striking area, said apertures extending axially transversely to and away from said plane whereby said apertures are adapted for stringing therethrough of strings extending substantially in said striking area plane.
Claim 6
Dependent Claim
83 words
For use in a game-playing strung racquet having a handle, a high strength cast metal looped frame defining a striking area lying in a plane bisecting the frame, said frame having cast through apertures each having an end opening into said plane at least at the portion of each aperture closest to the striking area, said apertures extending axially transversely to and away from said plane whereby said apertures are adapted for stringing therethrough of strings extending substantially in said striking area plane.
Claim 7
Dependent Claim
16 words
A racquet frame as set forth in claim 4 wherein said frame comprises a unitary casting.
Claim 8
Dependent Claim
23 words
A racquet frame as set forth in claim 4 wherein said frame comprises a multipart casting and means fixedly connecting the casting parts.
Claim 9
Dependent Claim
18 words
The racquet frame of claim 6 further including means cast integral therewith for securing the parts thereof together.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |