Patent US4140099A successfully refreshed from Google Patents.
US4140099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foldable stove
Assignee: JTB Inc
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Filing: 1977-03-28
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Granted: 1979-02-20
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Expires: 1997-03-28
Abstract
Abstract A portable collapsible stove capable of being folded into a compact package which is made substantially entirely of thin metal sheet being folded along a pair of generally parallel fold lines thereby forming a horizontal cooking surface supported by a pair of sides, and which has a fuel support surface lying beneath the cooking surface and extending between and folded together with the sides, the fuel support surface including a pair of fold lines generally parallel to the first fold lines whereby the sides and fuel support surfaces may be folded beneath the cooking surface.
Inventors
- 👤 Duane B. Newport
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:46
CPC Classifications
F; F24; F24C; F24C1/00; F24C1/16; A; A47; A47J; A47J37/00; A47J37/06; A47J37/07; A47J37/0763
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
182 words
A portable collapsible stove made substantially entirely of heat resistant sheet material, said sheet material being folded along a pair of generally parallel first fold lines to form a planar cooking surface between said fold lines and a pair of side support sections on either side of said cooking surface, and said sheet material having a substantially planar fuel support surface lying beneath said cooking surface and extending between and folded together with said side support sections, said fuel support surface including a pair of second fold lines generally parallel to said first fold lines to form a planar lower center section between said second fold lines and parallel to said cooking surface, said fuel support surface includes lateral sections on either side of said second fold lines, means hingedly joining said lateral sections to said side support sections, wherein when said stove is collapsed said side support sections are folded about said first fold lines underneath said cooking surface, and said fuel support surface is folded about said second fold lines with its said lateral sections folded underneath said cooking surface.
Claim 2
Dependent Claim
182 words
A portable collapsible stove made substantially entirely of heat resistant sheet material, said sheet material being folded along a pair of generally parallel first fold lines to form a planar cooking surface between said fold lines and a pair of side support sections on either side of said cooking surface, and said sheet material having a substantially planar fuel support surface lying beneath said cooking surface and extending between and folded together with said side support sections, said fuel support surface including a pair of second fold lines generally parallel to said first fold lines to form a planar lower center section between said second fold lines and parallel to said cooking surface, said fuel support surface includes lateral sections on either side of said second fold lines, means hingedly joining said lateral sections to said side support sections, wherein when said stove is collapsed said side support sections are folded about said first fold lines underneath said cooking surface, and said fuel support surface is folded about said second fold lines with its said lateral sections folded underneath said cooking surface.
Claim 3
Dependent Claim
37 words
The stove of claim 1 wherein said cooking surface and said side support sections together comprise a first metal sheet, and said fuel support surface comprises a second metal sheet hingedly joined to said first metal sheet.
Claim 4
Dependent Claim
27 words
The stove of claim 2 wherein said first and second sheets are hingedly joined along a pair of rolled seams contiguous respectively to said side support sections.
Claim 5
Dependent Claim
49 words
The stove of claim 3 wherein said side support sections extend downwardly at an obtuse angle from said cooking surface, said fuel support surface is planar and parallel to said cooking surface, and said rolled seams extend downwardly from said fuel support surface so as to form supporting legs.
Claim 6
Dependent Claim
29 words
The stove of claim 1 wherein said fuel support surface lateral sections are folded beneath said fuel support surface center section between the latter and said side support sections.
Claim 7
Dependent Claim
14 words
The stove of claim 5 and including a quantity of solid fuel enclosed therein.
Claim 8
Dependent Claim
25 words
The stove of claim 3 including a plurality of tabs integral with said rolled seams and adapted to be folded beneath said fuel support surface.
Claim 9
Dependent Claim
30 words
The stove of claim 3 including a plurality of tabs integral with said cooking surface extending between said side support sections and adapted to be folded beneath said cooking surface.
Claim 10
Dependent Claim
19 words
The stove of claim 1 wherein said sheet material is metal sheet having a thickness of about 0.004 inch.
Claim 11
Dependent Claim
15 words
The stove of claim 1 wherein said sheet material is a single integral metal sheet.
Claim 12
Dependent Claim
14 words
The stove of claim 1 wherein said sheet material is a single metal band.
Claim 13
Dependent Claim
15 words
The stove of claim 1 wherein said fuel support surface includes a plurality of apertures.
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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) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |