US2919474A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Moldable polyethylene
Assignee: General Electric Co
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Filing: 1956-01-27
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Granted: 1960-01-05
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Expires: 1976-01-27
Abstract
No abstract record available.
Inventors
- 👤 Quintin P Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:31
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/24; C08J3/244; C08K; C08K5/00; C08K5/04; C08K5/14; C08J2323/00; C08J2323/02; C08J2323/04; C08J2323/06; C08K5/10; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L2312/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE PROCESS FOR PREPARING A POLYETHYLENE WHICH CAN BE READILY MOLDED TO YIELD PRODUCTS HAVING DECREASED SOLUBILITY AND FUSIBILITY AT ELEVATED TEMPERATURES FROM POLYETHYLENE WHICH HAS BEEN CHEMICALLY CROSS-LINKED TO PRODUCE A MATERIAL WHICH CANNOT BE READILY MOLDED, WHICH PROCESS COMPRISES MILLING THE CHEMICALLY CROSSLINKED POLYETHYLENE BY SUBJECTING THE LATTER TO A SHEARING ACTION AT A TEMPERATURE ABOVE 80*C. FOR A TIME IN EXCESS OF 5 MINUTES.
Claim 2
Dependent Claim
67 words
THE PROCESS FOR PREPARING A POLYETHYLENE WHICH CAN BE READILY MOLDED TO YIELD PRODUCTS HAVING DECREASED SOLUBILITY AND FUSIBILITY AT ELEVATED TEMPERATURES FROM POLYETHYLENE WHICH HAS BEEN CHEMICALLY CROSS-LINKED TO PRODUCE A MATERIAL WHICH CANNOT BE READILY MOLDED, WHICH PROCESS COMPRISES MILLING THE CHEMICALLY CROSSLINKED POLYETHYLENE BY SUBJECTING THE LATTER TO A SHEARING ACTION AT A TEMPERATURE ABOVE 80*C. FOR A TIME IN EXCESS OF 5 MINUTES.
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) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |