US4147828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tumbling and exercise mat
Assignee: SEKISUI (EUROPE) AG BAARERSTRASSE 10 CH - 6300 ZUG SWITZERLAND
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Filing: 1977-07-08
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Granted: 1979-04-03
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Expires: 1997-07-08
Abstract
Abstract A lightweight exercise and tumbling mat comprises a core composed of a closed-cell foamed synthetic material with soft elastic properties. A textile sheet and/or film is disposed on the top surface of the core and a nonskid sheeting of rubber or synthetic material is disposed on the underside of the core.
Inventors
- 👤 Klaus Heckel
- 👤 Friedemann Klaffke
- 👤 Walter Umann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:22
CPC Classifications
A; A63; A63B; A63B6/00; B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/245; B32B27/00; B32B27/06; B32B27/065; B32B5/18; A63B2208/00; A63B2208/12; B32B2266/00; B32B2266/02; B32B2266/0214; B32B2266/025; B32B2266/08; B32B2471/00; B32B2471/04; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249976; Y10T428/249981; Y10T442/00; Y10T442/10; Y10T442/102; Y10T442/15; Y10T442/162; Y10T442/164
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
79 words
A lightweight exercise and tumbling mat comprising a core comprising a plurality of layers laminated together, each layer composed of a closed-cell foamed synthetic material with soft elastic properties, wherein the plurality of layers have a progressively greater density towards the underside, at least one of a textile sheeting and a film on the surface corresponding to the top and a nonskid sheeting comprising an open mesh netting of rubber or synthetic material on the underside of the core.
Claim 2
Dependent Claim
79 words
A lightweight exercise and tumbling mat comprising a core comprising a plurality of layers laminated together, each layer composed of a closed-cell foamed synthetic material with soft elastic properties, wherein the plurality of layers have a progressively greater density towards the underside, at least one of a textile sheeting and a film on the surface corresponding to the top and a nonskid sheeting comprising an open mesh netting of rubber or synthetic material on the underside of the core.
Claim 3
Dependent Claim
14 words
The mat according to claim 1 wherein the core comprises closed-cell foamed cross-linked polyolefins.
Claim 4
Dependent Claim
17 words
The mat according to claim 3 wherein the polyolefins are closed-cell foamed cross-linked polyethylenes of unlike density.
References Cited (Backward Citations)
GB1294606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-04-02 | 1982-10-02 | 1983-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-04-02 | 1986-10-02 | 1987-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-04-02 | 1990-10-02 | 1991-04-03 | $7700.00 | Window Closed / Lapsed |