Patent US2737467A successfully refreshed from Google Patents.
US2737467A
Expired / Lapsed
US
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Laminated sheet material for packaging moisture-containing foods
Assignee: Marathon Corp
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Filing: 1953-07-27
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Granted: 1956-03-06
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Expires: 1973-07-27
Abstract
No abstract record available.
Inventors
- 👤 Massey Theodore Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:00
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24628; Y10T428/24653; Y10T428/24752; Y10T428/24769
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
LAMINATED SHEET MATERIAL FOR PACKAGING MOISTURECONTAINING FOODS COMPRISING AS OUTER FLEXIBLE SHEET, HAVING A FLEXIBLE MOISTURE-PROOF ADHESIVE CONTINUOUSLY APPLIED TO ONE SURFACE THEREOF, AN INTERMEDIATE ABSORBENT LAYER OF SUBSTANTIALLY LESSER WIDTH THAN OUTER SHEET, THE INTERMEDIATE LAYER BY MEANS OF SAID ADHESIVE BEING CONTINUOUSLY ADHERED TO SAID OUTER SHEET WITH A SIDE MARGIN OF SAID OUTER SHEET EXTENDING BEYOND EACH SIDE EDGE OF THE INTERMEDIATE LAYER, AND A MOISTURE VAPOR-PERMEABLE, GREASE RESISTANT, FLEXIBLE INNER SHEET OF SUBSTANTIALLY THE SAME WIDTH AS SAID OUTER SHEET, THE INNER SHEET BY MEANS OF SAID ADHESIVE BEING ADHERED ALONG BOTH SIDE MARGINS THEREOF TO THE SIDE MARGINS OF SAID OUTER SHEET EXTENDING BEYOND THE SIDE EDGES OF THE INTERMEDIATE LAYER.
Claim 2
Dependent Claim
116 words
LAMINATED SHEET MATERIAL FOR PACKAGING MOISTURECONTAINING FOODS COMPRISING AS OUTER FLEXIBLE SHEET, HAVING A FLEXIBLE MOISTURE-PROOF ADHESIVE CONTINUOUSLY APPLIED TO ONE SURFACE THEREOF, AN INTERMEDIATE ABSORBENT LAYER OF SUBSTANTIALLY LESSER WIDTH THAN OUTER SHEET, THE INTERMEDIATE LAYER BY MEANS OF SAID ADHESIVE BEING CONTINUOUSLY ADHERED TO SAID OUTER SHEET WITH A SIDE MARGIN OF SAID OUTER SHEET EXTENDING BEYOND EACH SIDE EDGE OF THE INTERMEDIATE LAYER, AND A MOISTURE VAPOR-PERMEABLE, GREASE RESISTANT, FLEXIBLE INNER SHEET OF SUBSTANTIALLY THE SAME WIDTH AS SAID OUTER SHEET, THE INNER SHEET BY MEANS OF SAID ADHESIVE BEING ADHERED ALONG BOTH SIDE MARGINS THEREOF TO THE SIDE MARGINS OF SAID OUTER SHEET EXTENDING BEYOND THE SIDE EDGES OF THE INTERMEDIATE LAYER.
References Cited (Backward Citations)
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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) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |