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US5035017A Expired / Lapsed US ⏱️ 0.0 years remaining

Magnetic sleeping mat

Assignee: NIPPON ATHLETIC INDUSTRY Co
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Filing: 1991-01-11
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Granted: 1991-07-30
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Expires: 2011-01-11
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Abstract

Abstract A magnetic sleeping mat having a magnetic effect and a manual pressure effect; comprising a foamed synthetic resin board having large projection formed on its upper surface and further having small projections on its upper surface and bottom surface; a first fibrous sheet having holes and superposed on the upper surface of the foamed synthetic resin board so as to be fitted in its holes with the large projections of the foamed synthetic resin board and to be contacted with the small projections of the board; a second fibrous sheet having holes and superposed on the upper surface of the first fibrous sheet so as to be fitted in its holes with the large projections of the board; permanent magnets arranged on the second fibrous sheet; and a cover cloth which covers the laminated assembly consisting of the foamed synthetic resin board, the first fibrous sheet and the second fibrous sheet containing the permanent magnets.

Inventors

  • 👤 Mitsuo Komuro

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 22:06
CPC Classifications
A; A47; A47C; A47C27/00; A47C27/14; A47C27/142; A47C27/146; A47C27/144; A47C27/22; A47C31/00; A47C31/003; A61; A61N; A61N2/00; A61N2/06; Y; Y10; Y10S; Y10S5/00; Y10S5/906

Claims Analysis

Total Claims: 3
Claim 1
Independent Claim 216 words
A magnetic sleeping mat, comprising a board consisting of a foamed synthetic resin; a first fibrous sheet superposed on the foamed synthetic resin board; a second fibrous sheet superposed on the first fibrous sheet; permanent magnets distributedly arranged on the second fibrous sheet; and a cover cloth which covers the laminated assembly consisting of the foamed synthetic resin board, the first fibrous sheet and the second fibrous sheet containing the permanent magnets; said foamed synthetic resin board having large projections, which are distributedly formed on its upper surface, and small projections, which are distributedly formed on its upper surface and are located between the large projections, and further having small projections, which are distributedly formed on its bottom surface; said first fibrous sheet having holes, which have been formed therethrough, and being superposed on the upper surface of the foamed synthetic resin board so as to be fitted in its holes with the large projections of the foamed synthetic resin board and to be contacted with the top portions of the small projections thereof; and said second fibrous sheet having holes, which have been formed therethrough, and being superposed on the upper surface of the first fibrous sheet so as to be fitted in its holes with the large projections of the foamed synthetic resin board.
Claim 2
Dependent Claim 216 words
A magnetic sleeping mat, comprising a board consisting of a foamed synthetic resin; a first fibrous sheet superposed on the foamed synthetic resin board; a second fibrous sheet superposed on the first fibrous sheet; permanent magnets distributedly arranged on the second fibrous sheet; and a cover cloth which covers the laminated assembly consisting of the foamed synthetic resin board, the first fibrous sheet and the second fibrous sheet containing the permanent magnets; said foamed synthetic resin board having large projections, which are distributedly formed on its upper surface, and small projections, which are distributedly formed on its upper surface and are located between the large projections, and further having small projections, which are distributedly formed on its bottom surface; said first fibrous sheet having holes, which have been formed therethrough, and being superposed on the upper surface of the foamed synthetic resin board so as to be fitted in its holes with the large projections of the foamed synthetic resin board and to be contacted with the top portions of the small projections thereof; and said second fibrous sheet having holes, which have been formed therethrough, and being superposed on the upper surface of the first fibrous sheet so as to be fitted in its holes with the large projections of the foamed synthetic resin board.
Claim 3
Dependent Claim 42 words
A magnetic sleeping mat according to claim 1, which further comprises a cloth interposed between the lower first fibrous sheet and the upper second fibrous sheet, said cloth having previously been subjected to a heat insulation treatment or a radiation heat-reflection treatment.

References Cited (Backward Citations)

JPS5425109A Cited
US4143435A Cited
US4330892A Cited
US4509219A Cited
US4924542A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-07-29 1995-01-28 1995-07-30 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-07-29 1999-01-28 1999-07-30 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-07-29 2003-01-28 2003-07-30 $7700.00 Window Closed / Lapsed

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