Patent US3729786A successfully refreshed from Google Patents.
US3729786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardboard blanks and boxes formed therefrom
Assignee: Individual
•
Filing: 1970-09-08
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Granted: 1973-05-01
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Expires: 1990-09-08
Abstract
Abstract A cardboard blank for erection to form a box is of composite form. It comprises a base panel and separate wall panels attached to a backing sheet in the correct relative positions for erection to form the box with adjoining edge regions of the separate panels appropriately abutting one another. The outline of the backing sheet is such that it projects at the free side edges of the panels to provide portions which lap over adjoining panels when the blank is erected.
Inventors
- 👤 Walding R Trevor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:16
CPC Classifications
A; A61; A61G; A61G17/00; A61G17/007; A61G17/0073
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
184 words
Coffin-forming means comprising: a composite blank which includes a backing sheet of paper, a base panel of corrugated cardboard and four separate wall panels, each of corrugated cardboard, attached to the backing sheet in the correct relative positions for erection to form a coffin with adjoining edge regions of the separate panels abutting one another, the said backing sheet having an outline such that it projects at the free side edges of the wall panels to provide portions which lap over adjoining wall panels when the blank is erected, said backing sheet projecting an additional amount at each end of an opposite pair of said wall panels to provide projecting portions each of which completely overlaps the corresponding one of the other wall panels, handle mountings disposed externally of said pair of opposite wall panels, and strips of initially flexible material extending, in the erected coffin, laterally across the base panel and at least part way up said opposite wall panels and terminating at said handle mountings so that they form sling-like loops which materially support the weight of the contents of the coffin.
Claim 2
Dependent Claim
184 words
Coffin-forming means comprising: a composite blank which includes a backing sheet of paper, a base panel of corrugated cardboard and four separate wall panels, each of corrugated cardboard, attached to the backing sheet in the correct relative positions for erection to form a coffin with adjoining edge regions of the separate panels abutting one another, the said backing sheet having an outline such that it projects at the free side edges of the wall panels to provide portions which lap over adjoining wall panels when the blank is erected, said backing sheet projecting an additional amount at each end of an opposite pair of said wall panels to provide projecting portions each of which completely overlaps the corresponding one of the other wall panels, handle mountings disposed externally of said pair of opposite wall panels, and strips of initially flexible material extending, in the erected coffin, laterally across the base panel and at least part way up said opposite wall panels and terminating at said handle mountings so that they form sling-like loops which materially support the weight of the contents of the coffin.
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) | 1976-04-30 | 1976-10-30 | 1977-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-30 | 1980-10-30 | 1981-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-30 | 1984-10-30 | 1985-05-01 | $7700.00 | Window Closed / Lapsed |