US2999782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite heat-sealable wrapping material
Assignee: Akzo Nobel UK PLC
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Filing: 1959-07-14
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Granted: 1961-09-12
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Expires: 1979-07-14
Abstract
No abstract record available.
Inventors
- 👤 John L Justice
- 👤 Charles M Rosser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:33
CPC Classifications
B; B32; B32B; B32B27/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31891; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31986
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
61 words
A COMPOSITE WRAPPING MATERIAL WHICH COMPRISES A NORMALLY HYDROPHILIC, NON-FIBROUS, FLEXIBLE CELLULOSIC SHEET AND A POLYALKYLENIMINE SUBSTANTIALLY UNIFORMLY DISTRIBUTED WITHIN THE SHEET ADJACENT AT LEAST ONE SURFACE THEREOF, AND A FILM OF THERMOPLASTIC RESIN SELECTED FROM THE GROUP CONSISTING OF POLYOLEFINS AND SARANS CONSISTING PREDOMINANTLY OF VINYLIDENE CHOLIDE, SAID FILM BEING JOINED CONTINUOUSLY TO SAID SHEET BY ANCHORAGE TO SAID POLYALKYLENIMINE.
Claim 2
Dependent Claim
61 words
A COMPOSITE WRAPPING MATERIAL WHICH COMPRISES A NORMALLY HYDROPHILIC, NON-FIBROUS, FLEXIBLE CELLULOSIC SHEET AND A POLYALKYLENIMINE SUBSTANTIALLY UNIFORMLY DISTRIBUTED WITHIN THE SHEET ADJACENT AT LEAST ONE SURFACE THEREOF, AND A FILM OF THERMOPLASTIC RESIN SELECTED FROM THE GROUP CONSISTING OF POLYOLEFINS AND SARANS CONSISTING PREDOMINANTLY OF VINYLIDENE CHOLIDE, SAID FILM BEING JOINED CONTINUOUSLY TO SAID SHEET BY ANCHORAGE TO SAID POLYALKYLENIMINE.
Claim 3
Independent Claim
56 words
A METHOD OF MAKING A COMPOSITE WRAPPING MATERIAL COMPRISING PASSING A WASHED REGENATED CELLULOSE SHEET IN THE GEL STATE THROUGH A SOLUTION CONTAINING A POLYALKYLENIMINE THEREBY IMPREGNATING IT WITH THE SOLUTION, DRYING THE SHEET AND APPLYING THERETO A FILM COMPRISING A RESIN FROM THE GROUP WHICH CONSISTS OF POLYOLEFINS AND SARANS CONSISTING PREDOMINANTLY OF VINYLIDENE CHLORIDE.
Claim 4
Independent Claim
56 words
A METHOD OF MAKING A COMPOSITE WRAPPING MATERIAL COMPRISING PASSING A WASHED REGENATED CELLULOSE SHEET IN THE GEL STATE THROUGH A SOLUTION CONTAINING A POLYALKYLENIMINE THEREBY IMPREGNATING IT WITH THE SOLUTION, DRYING THE SHEET AND APPLYING THERETO A FILM COMPRISING A RESIN FROM THE GROUP WHICH CONSISTS OF POLYOLEFINS AND SARANS CONSISTING PREDOMINANTLY OF VINYLIDENE CHLORIDE.
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) | 1964-09-11 | 1965-03-13 | 1965-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-09-11 | 1969-03-13 | 1969-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-09-11 | 1973-03-13 | 1973-09-12 | $7700.00 | Window Closed / Lapsed |