Patent DE4334266A1 successfully refreshed from Google Patents.
Patent WO1983001384A1 successfully refreshed from Google Patents.
US2738060A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shrinkable paper wrappers for filamentary packages
Assignee: Akzo Nobel UK PLC
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Filing: 1951-09-06
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Granted: 1956-03-13
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Expires: 1971-09-06
Abstract
No abstract record available.
Inventors
- 👤 Orlando A Battista
- 👤 Graeme G Whytlaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:10
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/10; D21H19/14; D21H19/20; D21H19/22; D01; D01D; D01D10/00; D01D10/04; D01D10/0418; D21H27/00; D21H27/002; D21H27/004; D21H27/005; D21H5/00; D21H5/02; D21H5/025; Y; Y10; Y10S; Y10S52/00; Y10S52/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
131 words
AN ASSEMBLY COMPRISING AN ANNULAR PACKAGE OF FRESHLY-SPUN REGENERATED CELLULOSE FILAMENTARY MATERIAL AND A SHRINKABLE PROTECTIVE WRAPPER CONFORMED TO THE CONTOURS OF THE PACKAGE AND COMPRISING A SHEET OF PAPER AND PAPER LIKE MATERIAL HAVING A MINIMUM WET STRENGTH OF 300 GMS AND RENDERED SHRINKABLE BY HAVING FROM 2 TO 40% OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF REGENERATED CELLULOSE AND ALKALI-SOLUBLE, WATER-INSOLUBLE CELLULOSE ETHERS SUPERIMPOSED ON A SURFACE THEREOF IN THE FORM OF SPACED DEPOSITS WHICH OCCUPY AT LEAST 5% OF THE AREA OF THE SHEET, THAT PORTION OF THE WRAPPER WHICH IS CONFORMED TO THE OUTER SIDE WALL OF THE PACKAGE CARRYING A FIRMLY ADHERENT COATING OF AN ACID AND ALKALI-RESISTANT, WATER NON-DISPERSIBLE ELASTOMER WHICH HAS A VAPOR-IMPERMEABILITY AT LEAST EQUIVALENT TO THE VAPOR-IMPERMEABILITY OF NATURAL RUBBER.
Claim 2
Dependent Claim
131 words
AN ASSEMBLY COMPRISING AN ANNULAR PACKAGE OF FRESHLY-SPUN REGENERATED CELLULOSE FILAMENTARY MATERIAL AND A SHRINKABLE PROTECTIVE WRAPPER CONFORMED TO THE CONTOURS OF THE PACKAGE AND COMPRISING A SHEET OF PAPER AND PAPER LIKE MATERIAL HAVING A MINIMUM WET STRENGTH OF 300 GMS AND RENDERED SHRINKABLE BY HAVING FROM 2 TO 40% OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF REGENERATED CELLULOSE AND ALKALI-SOLUBLE, WATER-INSOLUBLE CELLULOSE ETHERS SUPERIMPOSED ON A SURFACE THEREOF IN THE FORM OF SPACED DEPOSITS WHICH OCCUPY AT LEAST 5% OF THE AREA OF THE SHEET, THAT PORTION OF THE WRAPPER WHICH IS CONFORMED TO THE OUTER SIDE WALL OF THE PACKAGE CARRYING A FIRMLY ADHERENT COATING OF AN ACID AND ALKALI-RESISTANT, WATER NON-DISPERSIBLE ELASTOMER WHICH HAS A VAPOR-IMPERMEABILITY AT LEAST EQUIVALENT TO THE VAPOR-IMPERMEABILITY OF NATURAL RUBBER.
References Cited (Backward Citations)
US1786781A
Cited
US1996402A
Cited
US1996002A
Cited
US2033481A
Cited
US2387248A
Cited
US2382400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-13 | 1959-09-12 | 1960-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-13 | 1963-09-12 | 1964-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-13 | 1967-09-12 | 1968-03-13 | $7700.00 | Window Closed / Lapsed |