US4397902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Construction-element
Assignee: RESCH RONALD D
•
Filing: 1979-03-21
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Granted: 1983-08-09
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Expires: 1999-03-21
Abstract
Abstract A construction element of folded sheet material having a repetitive pattern of similarly shaped geometric figures. The tops of the figures lie in one plane and the troughs in a second parallel plane. Four tops are situated around one trough and are connected with it through four angled surfaces.
Inventors
- 👤 Ronald D. Resch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:14
CPC Classifications
B; B32; B32B; B32B3/00; B32B3/26; B32B3/266; B65; B65D; B65D85/00; B65D85/30; B65D85/32; B32B15/00; B32B15/01; B32B27/00; B32B27/06; B32B27/08; B32B3/30; B32B7/00; B32B7/04; B32B7/12; B32B38/00; B32B38/04; B32B2038/042; B32B2311/00; B32B2553/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24174; Y10T428/24628; Y10T428/24669; Y10T428/24678
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
124 words
A construction element comprising a plate like material folded to a regular repetitive pattern to form a plurality of regularly spaced depressions defined by rectangular tops located in a first plane and rectangular troughs located in a second plane said tops and troughs surrounding one another and being interconnected by four inclined flat surfaces, each said inclined flat surface being connected at opposite parallel ends to an edge of a respective top and an edge of a respective trough and having opposite side edges which are unconnected such that the unconnected side edges of said inclined flat surfaces define voids located between said tops and troughs which define rectangular openings in said construction element in a direction normal to said first and second planes.
Claim 2
Dependent Claim
124 words
A construction element comprising a plate like material folded to a regular repetitive pattern to form a plurality of regularly spaced depressions defined by rectangular tops located in a first plane and rectangular troughs located in a second plane said tops and troughs surrounding one another and being interconnected by four inclined flat surfaces, each said inclined flat surface being connected at opposite parallel ends to an edge of a respective top and an edge of a respective trough and having opposite side edges which are unconnected such that the unconnected side edges of said inclined flat surfaces define voids located between said tops and troughs which define rectangular openings in said construction element in a direction normal to said first and second planes.
Claim 3
Dependent Claim
156 words
A construction element comprising a plate like material folded to a regular repetitive pattern to form a plurality of regularly spaced depressions defined by rectangular tops located in a first plane and rectangular troughs located in a second plane said tops and troughs surrounding one another and being interconnected by inclined flat surfaces, each said inclined flat surface being connected at opposite parallel ends to an edge of a respective top and an edge of a respective trough and having opposite side edges, said side edges of said inclined surfaces being connected along their length to respective triangular flat surfaces which are perpendicular to the inclined surfaces to which they are connected and perpendiular to said first and second planes, a pair said triangular flat surfaces being edge connected and defining, with another pair of edge connected triangular flat surfaces, an opening in said construction element in a direction normal to said first and second planes.
Claim 4
Dependent Claim
156 words
A construction element comprising a plate like material folded to a regular repetitive pattern to form a plurality of regularly spaced depressions defined by rectangular tops located in a first plane and rectangular troughs located in a second plane said tops and troughs surrounding one another and being interconnected by inclined flat surfaces, each said inclined flat surface being connected at opposite parallel ends to an edge of a respective top and an edge of a respective trough and having opposite side edges, said side edges of said inclined surfaces being connected along their length to respective triangular flat surfaces which are perpendicular to the inclined surfaces to which they are connected and perpendiular to said first and second planes, a pair said triangular flat surfaces being edge connected and defining, with another pair of edge connected triangular flat surfaces, an opening in said construction element in a direction normal to said first and second planes.
Claim 5
Dependent Claim
20 words
A construction-element according to claims 1 or 2, wherein said troughs and tops respectively have an opening at their corners.
Claim 6
Dependent Claim
16 words
A contruction-element according to claims 1 or 2, wherein the tops and troughs are square surfaces.
Claim 7
Dependent Claim
35 words
A construction-element according to claims 1 or 2, wherein the tops have a smaller area than the troughs and the inclined flat surfaces between the tops and troughs are in the form of a trapezoid.
Claim 8
Dependent Claim
21 words
A construction element according to claims 1 or 2, further comprising two flat plates respectively connected to the tops and troughs.
Claim 9
Dependent Claim
12 words
A construction element according to claim 6, wherein said plates are curved.
References Cited (Backward Citations)
CA723991A
Cited
US847854A
Cited
US1000694A
Cited
US1154254A
Cited
FR426028A
Cited
US1165133A
Cited
US1176427A
Cited
US1232226A
Cited
US1257252A
Cited
US1875188A
Cited
FR857000A
Cited
US2481046A
Cited
US2662659A
Cited
US2813652A
Cited
GB856441A
Cited
US2950726A
Cited
US3011602A
Cited
US3112533A
Cited
GB1010374A
Cited
US3262786A
Cited
US3695479A
Cited
US3869778A
Cited
US3911187A
Cited
US4169339A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-08-08 | 1987-02-07 | 1987-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-08-08 | 1991-02-07 | 1991-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-08-08 | 1995-02-07 | 1995-08-09 | $7700.00 | Window Closed / Lapsed |