US4086384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reforced paper-microfoam sheet packaging material
Assignee: Crowell Corp
•
Filing: 1976-07-13
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Granted: 1978-04-25
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Expires: 1996-07-13
Abstract
Abstract A padded wrapping and packaging material is comprised of laminated layers of kraft paper and a sheet of closed cellular microfoam, either reinforced by an intermediate fiberglass insert or with the face of the microfoam coated with a cohesive material, or both features may be utilized with the laminate.
Inventors
- 👤 Herbert B. Adelman
- 👤 Jack Goodman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:33
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/10; B32B29/00; B32B29/02; B32B5/00; B32B5/18; B32B5/22; B32B5/24; B32B5/245; B32B7/00; B32B7/04; B32B7/12; B32B37/00; B32B37/12; B32B37/1207; B32B2037/1215; B32B2262/00; B32B2262/10; B32B2262/101; B32B2266/00; B32B2266/08; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24777; Y10T428/24785; Y10T428/24942; Y10T428/2495; Y10T428/249921; Y10T428/249953; Y10T428/249978; Y10T428/31504; Y10T428/31551; Y10T428/31645; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31902; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
80 words
A laminated sheet material comprising a relatively thin layer of paper material, a relatively thicker layer of a sealed cell microfoam polymer, a layer of strong adhesive material completely bonding the microfoam and paper layers together, and a layer of fiberglass strands inserted between the paper and microfoam layers and imbedded in the adhesive whereby an extremely strong tear-resistant and tear-stopping laminate is provided having an extremely smooth and protective microfoam surface which is capable of protecting extremely fine finishes.
Claim 2
Dependent Claim
80 words
A laminated sheet material comprising a relatively thin layer of paper material, a relatively thicker layer of a sealed cell microfoam polymer, a layer of strong adhesive material completely bonding the microfoam and paper layers together, and a layer of fiberglass strands inserted between the paper and microfoam layers and imbedded in the adhesive whereby an extremely strong tear-resistant and tear-stopping laminate is provided having an extremely smooth and protective microfoam surface which is capable of protecting extremely fine finishes.
Claim 3
Dependent Claim
24 words
A laminated sheet material as set forth in claim 1 wherein the adhesive is waterproof whereby the waterproofing characteristics of the microfoam are reinforced.
Claim 4
Dependent Claim
19 words
A laminated sheet material as set forth in claim 2 wherein the waterproof adhesive is a hot melt adhesive.
Claim 5
Dependent Claim
46 words
A laminated sheet material as set forth in claim 1 wherein a cohesive nonadhesive coating is applied to the exposed surface of the microfoam whereby a uniquely high coefficient of friction is imparted to the exposed surface, and securing of the laminate to itself is facilitated.
Claim 6
Dependent Claim
71 words
A laminated sheet material comprising a relatively thin layer of paper material, a relatively thicker layer of sealed cell microfoam polymer, a layer of strong adhesive material completely bonding the microfoam and paper layer together, and a cohesive nonadhesive coating is applied to the exposed surface of the microfoam whereby a uniquely high coefficient of friction is imparted to the exposed surface and securing of the laminate to itself is facilitated.
Claim 7
Dependent Claim
71 words
A laminated sheet material comprising a relatively thin layer of paper material, a relatively thicker layer of sealed cell microfoam polymer, a layer of strong adhesive material completely bonding the microfoam and paper layer together, and a cohesive nonadhesive coating is applied to the exposed surface of the microfoam whereby a uniquely high coefficient of friction is imparted to the exposed surface and securing of the laminate to itself is facilitated.
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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) | 1981-04-24 | 1981-10-24 | 1982-04-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-24 | 1985-10-24 | 1986-04-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-24 | 1989-10-24 | 1990-04-25 | $7700.00 | Window Closed / Lapsed |