Patent US2870043A successfully refreshed from Google Patents.
US2870043A
Expired / Lapsed
US
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Printable polyethylene film
Assignee: EIDP Inc
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Filing: 1954-06-03
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Granted: 1959-01-20
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Expires: 1974-06-03
Abstract
No abstract record available.
Inventors
- 👤 Leon E Wolinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:48
CPC Classifications
C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/044; C08J7/052; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/16; Y10T; Y10T428/00; Y10T428/27; Y10T428/273; Y10T428/31504; Y10T428/31652; Y10T428/31667
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
62 words
POLYETHYLENE FILM THE SURFACES OF WHICH HAVE UNIFORMLY DISTRIBUTED THEREON A COMPOSITION COMPRISING ESSENTIALLY FROM 0.4 TO 3.0 MILLIGRAMS, PER SQUARE FOOT OF FILM SURFACE, OF DIMETHYL SILICONE OIL HAVING A VISCOSITY NO GREATER THAN 1000 CENTISTOKES MEASURED AT 38*C., AND FROM 0.8 TO 2.5 MILLIGRAMS, PER SQUARE FOOT OF FILM SURFACE, OF A WATER-SOLUBLE ALKYL ARYL POLYGLYCOL ETHER OF THE FORMULA:
Claim 2
Dependent Claim
62 words
POLYETHYLENE FILM THE SURFACES OF WHICH HAVE UNIFORMLY DISTRIBUTED THEREON A COMPOSITION COMPRISING ESSENTIALLY FROM 0.4 TO 3.0 MILLIGRAMS, PER SQUARE FOOT OF FILM SURFACE, OF DIMETHYL SILICONE OIL HAVING A VISCOSITY NO GREATER THAN 1000 CENTISTOKES MEASURED AT 38*C., AND FROM 0.8 TO 2.5 MILLIGRAMS, PER SQUARE FOOT OF FILM SURFACE, OF A WATER-SOLUBLE ALKYL ARYL POLYGLYCOL ETHER OF THE FORMULA:
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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) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |