Patent US5409218A successfully refreshed from Google Patents.
US5409218A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal game racket
Assignee: Individual
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Filing: 1994-01-07
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Granted: 1995-04-25
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Expires: 2014-01-07
Abstract
Abstract An improved metal game racket comprises a frame, a shaft and a handle. The frame has a head with an open end from which the shaft extends to join with the handle having a main body of a polymer material. The main body has an inner surface provided thereon with a reinforcing layer and further has an outer surface provided thereon with an auxiliary shock-absorbing layer. The main body has an anterior segment connected with the shaft and a posterior segment of hollow construction and extending from one end of the anterior segment. The reinforcing layer is made of a fiber reinforced plastic material while the auxiliary shock-absorbing layer is made of a plastic foam body.
Inventors
- 👤 Chin-San You
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:46
CPC Classifications
A; A63; A63B; A63B49/00; A63B49/02; A63B49/08; A63B60/00; A63B60/54; A63B49/12; A63B60/06; A63B60/08; A63B60/10
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
168 words
An improved metal game racket comprising: a frame of a metal tube and having a head and a shaft extending downwards from one end of said head; and a handle connected with an open end of said shaft; wherein said handle is composed of a main body of a polymer and having an anterior segment covering said open end of said shaft, said main body further having a posterior segment extending axially from said anterior segment, wherein said posterior segment of said main body of said handle is of a hollow construction, wherein a reinforcing layer is provided between said main body and said open end of said shaft, said reinforcing layer being made of a fiber reinforced plastic material, said reinforcing layer having a covering portion which covers said open end of said shaft, said reinforcing layer further having an extension portion of a predetermined length and extending from one end of said covering portion along an inner surface of said posterior segment of said main body.
Claim 2
Dependent Claim
168 words
An improved metal game racket comprising: a frame of a metal tube and having a head and a shaft extending downwards from one end of said head; and a handle connected with an open end of said shaft; wherein said handle is composed of a main body of a polymer and having an anterior segment covering said open end of said shaft, said main body further having a posterior segment extending axially from said anterior segment, wherein said posterior segment of said main body of said handle is of a hollow construction, wherein a reinforcing layer is provided between said main body and said open end of said shaft, said reinforcing layer being made of a fiber reinforced plastic material, said reinforcing layer having a covering portion which covers said open end of said shaft, said reinforcing layer further having an extension portion of a predetermined length and extending from one end of said covering portion along an inner surface of said posterior segment of said main body.
Claim 3
Dependent Claim
27 words
The improved metal game racket of claim 1 wherein said main body has an outer surface provided with an auxiliary shock-absorbing layer of a plastic foam body.
Claim 4
Dependent Claim
25 words
The improved metal game racket of claim 2 wherein said auxiliary shock-absorbing layer covers an outer surface of said anterior segment of said main body.
Claim 5
Dependent Claim
48 words
The improved metal game racket of claim 3 wherein said anterior segment of said main body is thinner than said posterior segment of said main body and is provided on said outer surface thereof with a first annular recessed area in which said auxiliary shock-absorbing layer is disposed.
Claim 6
Dependent Claim
25 words
The improved metal game racket of claim 2 wherein said auxiliary shock-absorbing layer covers an outer surface of said posterior segment of said main body.
Claim 7
Dependent Claim
48 words
The improved metal game racket of claim 5 wherein said posterior segment of said main body is thinner than said anterior segment of said main body and is provided on said outer surface thereof with a second annular recessed area in which said auxiliary shock-absorbing layer is disposed.
Claim 8
Dependent Claim
45 words
The improved metal game racket of claim 1 wherein said head is of an oval construction and has two open ends from which said shaft extends toward said handle to form two merging ends which are covered with said anterior segment of said main body.
Claim 9
Dependent Claim
79 words
The improved metal game racket of claim 7 wherein a reinforcing layer is provided between said main body and said shaft, said reinforcing layer being made of a fiber reinforced plastic material and having a covering portion and an extension portion, with said covering portion covering said two merging ends of said shaft, and with said extension portion extending axially from one end of said covering portion along an inner surface of said posterior segment of said main body.
Claim 10
Dependent Claim
27 words
The improved metal game racket of claim 7 wherein said two merging ends of said shaft are provided therebetween an insertion block of a plastic foam body.
Claim 11
Dependent Claim
28 words
The improved metal game racket of claim 7 wherein said main body has an outer surface provided thereon with an auxiliary shock-absorbing layer of a plastic foam body.
Claim 12
Dependent Claim
25 words
The improved metal game racket of claim 10 wherein said auxiliary shock-absorbing layer covers an outer surface of said anterior segment of said main body.
Claim 13
Dependent Claim
25 words
The improved metal game racket of claim 10 wherein said auxiliary shock-absorbing layer covers an outer surface of said posterior segment of said main body.
Claim 14
Dependent Claim
31 words
The improved metal game racket of claim 10 wherein said outer surface of said main body is provided with an annular recessed area in which said auxiliary shock-absorbing layer is disposed.
References Cited (Backward Citations)
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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) | 1998-04-24 | 1998-10-24 | 1999-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-04-24 | 2002-10-24 | 2003-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-04-24 | 2006-10-24 | 2007-04-25 | $7700.00 | Window Closed / Lapsed |