US2941254A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of forming polyethylene film and product
Assignee: EIDP Inc
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Filing: 1959-05-20
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Granted: 1960-06-21
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Expires: 1979-05-20
Abstract
No abstract record available.
Inventors
- 👤 Swerlick Isadore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:12
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/07; B29C48/08; Y; Y10; Y10S; Y10S8/00; Y10S8/10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/31504; Y10T428/31855; Y10T428/31859; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
THE PROCESS WHICH COMPRISES EXTRUDING HIGH DENSITY POLYETHYLENE IN FILM FORM AT A TEMPERATURE WITHIN THE RANGER OF FROM 352*C. TO THE TEMPERATURE BEYOND WHICH SUBSTANIAL DEGRADATION OF THE POLYETHYLENE OCCURS,
Claim 2
Dependent Claim
31 words
THE PROCESS WHICH COMPRISES EXTRUDING HIGH DENSITY POLYETHYLENE IN FILM FORM AT A TEMPERATURE WITHIN THE RANGER OF FROM 352*C. TO THE TEMPERATURE BEYOND WHICH SUBSTANIAL DEGRADATION OF THE POLYETHYLENE OCCURS,
References Cited (Backward Citations)
US2801446A
Cited
US2859480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |