US3868056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective containers and methods of making the same
Assignee: Sealed Air Corp
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Filing: 1973-05-21
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Granted: 1975-02-25
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Expires: 1993-05-21
Abstract
Abstract A cover sheet of paper or the like is laminated with a liner blanket of plastic material embodying closely spaced and hermetically sealed air cells. The composite sheet or mat is doubled upon either its longitudinal or its transverse center line to form a folder-shaped body with the cellular blanket inside. Two of the three open borders are heat sealed, hinged over upon and secured to the adjacent exterior surfaces of the body, thus completing a pressure cushioning and heat insulating container. The open border of the container is preferably crushed or compressed, to thin its walls for convenience in filling and subsequent closure.
Inventors
- 👤 Eitan Keren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:29
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B65; B65D; B65D31/00; B65D31/02; B32B27/10; B32B29/00; B32B29/002; B32B29/02; B32B5/00; B32B5/02; B32B2250/00; B32B2250/42; B32B2305/00; B32B2305/02; B32B2305/10; B32B2305/18; B32B2307/00; B32B2307/70; B32B2307/724; B32B2307/7242; B32B2439/00; B32B2439/70; B32B2553/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
A protective container comprising an outer covering folded upon itself to form two layers disposed in overlying relationship and a seamless edge, a sheet of cellular material adhered to the inner facing surfaces of said outer covering, said cellular material having a first plastic sheet including a plurality of closely spaced embossments extending from one side thereof and a second plastic sheet secured to the other side of said first sheet, at least two opposing, substantially parallel marginal hermetically sealed edge zones and at least one open edge zone, the cellular material disposed within said marginal hermetically sealed edge zones and said open edge zone being crushed to collapse the cells in said cellular material and said hermetically sealed edge zones being folded and sealed to the adjoining surfaces of the contaIner whereby said hermetically sealed edge zones impart a relatively high degree of stiffness to said container and thereby enhance the protective qualities thereof.
Claim 2
Dependent Claim
155 words
A protective container comprising an outer covering folded upon itself to form two layers disposed in overlying relationship and a seamless edge, a sheet of cellular material adhered to the inner facing surfaces of said outer covering, said cellular material having a first plastic sheet including a plurality of closely spaced embossments extending from one side thereof and a second plastic sheet secured to the other side of said first sheet, at least two opposing, substantially parallel marginal hermetically sealed edge zones and at least one open edge zone, the cellular material disposed within said marginal hermetically sealed edge zones and said open edge zone being crushed to collapse the cells in said cellular material and said hermetically sealed edge zones being folded and sealed to the adjoining surfaces of the contaIner whereby said hermetically sealed edge zones impart a relatively high degree of stiffness to said container and thereby enhance the protective qualities thereof.
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) | 1978-02-24 | 1978-08-26 | 1979-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-24 | 1982-08-26 | 1983-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-24 | 1986-08-26 | 1987-02-25 | $7700.00 | Window Closed / Lapsed |