Patent US4844470A successfully refreshed from Google Patents.
US4844470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Golf mat
Assignee: STEMARK Inc 2010 S ANKENY BOULEVARD ANKENY IOWA 50021 A IOWA CORP
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Filing: 1988-06-06
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Granted: 1989-07-04
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Expires: 2008-06-06
Abstract
Abstract A golf mat of grass-like material includes top and bottom pads, each of which includes belting material which substantially strengthens them and protects the mat from damage from golf clubs striking it. The golf tee extends only through the top pad and not through the mat and the belting material of the top pad prevents any enlargement of the hole through the top pad which includes felt carpet which also gives a grass-like appearance. The top pad is loosely secured to the mat and may be raised at its center for replacement of the tee, and the top pad absorbs energy from the golf club due to its ability to move relative to the mat when it is struck. The pad may be replaced through operation of the bolts at its opposite ends.
Inventors
- 👤 Mark A. Hammon
- 👤 Steven J. Ackerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:01
CPC Classifications
A; A63; A63B; A63B69/00; A63B69/36; A63B69/3661
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
161 words
A golf mat comprising, a base mat including a layer of cushion material to which a cover layer of grass-like carpet is secured by adhesive, a top pad on said base mat, said top pad including a layer of durable flexible belting type material to which a cover layer of grass-like carpet is secured by adhesive, a bottom pad of durable flexible belting type material is provided under said base mat in vertical alignment with said top pad, a golf tee on the top side of said base mat extending through only said top pad, and said top and bottom pads being elongated with midsections between opposite ends and said pads being secured by fastening means only at their opposite ends to said base mat leaving their midsections free for limited horizontal movement in response to horizontal impact from a golf club striking said tee or said top pad while said cushion tends to absorb club impact in a vertical direction.
Claim 2
Dependent Claim
161 words
A golf mat comprising, a base mat including a layer of cushion material to which a cover layer of grass-like carpet is secured by adhesive, a top pad on said base mat, said top pad including a layer of durable flexible belting type material to which a cover layer of grass-like carpet is secured by adhesive, a bottom pad of durable flexible belting type material is provided under said base mat in vertical alignment with said top pad, a golf tee on the top side of said base mat extending through only said top pad, and said top and bottom pads being elongated with midsections between opposite ends and said pads being secured by fastening means only at their opposite ends to said base mat leaving their midsections free for limited horizontal movement in response to horizontal impact from a golf club striking said tee or said top pad while said cushion tends to absorb club impact in a vertical direction.
Claim 3
Dependent Claim
37 words
The structure of claim 1 wherein said fastening means is further defined as being a plurality of bolts extending through said bottom pad, said base mat and said layer of belting type material in said top pad.
Claim 4
Dependent Claim
34 words
The structure of claim 2 wherein said bolts terminate below the layer of grass-like carpet on said belting type material in said top pad thereby avoiding damage to clubs upon hitting said top pad.
Claim 5
Dependent Claim
45 words
The structure of claim 1 wherein said top pad is substantially smaller in area than said base mat, and said grass-like carpet on said base mat under said top pad has been removed allowing said top pad to be loosely recessed into said base mat.
Claim 6
Dependent Claim
19 words
The structure of claim 4 wherein the top pad and base mat have top surfaces which are substantially coplanar.
Claim 7
Dependent Claim
31 words
The structure of claim 5 wherein said base mat includes a peripheral edge which includes serging, securing said foam rubber to said grass-like carpet, thereby preventing delamination of said base mat.
Claim 8
Dependent Claim
30 words
The structure of claim 6 wherein said base mat includes popypropylene material of the top side of said foam rubber which is secured thereto by said edge serging and adhesive.
Claim 9
Dependent Claim
20 words
The structure of claim 1 wherein said cushion layer of said base mat is further defined as being foam material.
Claim 10
Dependent Claim
30 words
The structure of claim 1 wherein said layer of grass-like carpet of said top pad, is further defined as being secured to said layer of belting type material by stitching.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |