Patent US3668049A successfully refreshed from Google Patents.
US3668049A
Expired / Lapsed
US
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Laminated packing material with spaced parallel reinforcing members
Assignee: Santrade Ltd
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Filing: 1971-06-17
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Granted: 1972-06-06
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Expires: 1991-06-17
Abstract
Abstract A laminated packing material consisting essentially of two outer, layer-like members and an intermediate array of spaced, parallel, stiffening rib members secured to said outer members. At least one of said outer members may comprise two layers of paper with an intermediate layer of fabric. The rib members may be in the form of relatively short, flat, strips of wood fiber board whose abutting ends are staggered from rib to rib.
Inventors
- 👤 Ade William Silfverlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:46
CPC Classifications
B; B32; B32B; B32B3/00; B32B3/10; B32B3/18; Y; Y10; Y10T; Y10T428/00; Y10T428/16; Y10T428/163; Y10T428/24; Y10T428/24132; Y10T428/24752; Y10T428/2476; Y10T428/249921; Y10T428/249924; Y10T428/249926
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
22 words
Laminated packing material as defined in claim 1, in which the ribs are bonded to the two outer layers with an adhesive.
Claim 2
Dependent Claim
15 words
Laminated packing material as defined in claim 1, in which the outer layers comprise paper.
Claim 3
Dependent Claim
16 words
Laminated packing material as defined in claim 1, in which the outer layers comprise woven fabric.
Claim 4
Dependent Claim
18 words
Laminated packing material as defined in claim 1, in which the ribs are made of wood fiber board.
Claim 5
Dependent Claim
17 words
Laminated packing material as defined in claim 4, in which the fabric consists of a nylon net.
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) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |