US2948666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Irradiation process
Assignee: General Electric Co
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Filing: 1956-11-21
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Granted: 1960-08-09
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Expires: 1976-11-21
Abstract
No abstract record available.
Inventors
- 👤 Elliott J Lawton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:59
CPC Classifications
B; B29; B29C; B29C71/00; B29C71/04; H; H04; H04Q; H04Q3/00; B29C35/00; B29C35/02; B29C35/08; B29C35/0866; B29C2035/0877; B29K; B29K2023/00; B29K2023/10; B29K2023/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
SOLID IRRADIATIVELY CROSS-LINKED POLYPROPYLENE, WHICH IS CHARACTERIZED BY (1) ITS RESISTANCE TO OXIDATION IN AIR, (2) ITS FREEDOM FROM SUBSTANTIALLY ALL OF THE RADIATIONINDUCED FREE RADICALS, AND (3) ITS FREEDOM FROM SUBSTANTIAL DEGRADATION BY OXYGEN.
Claim 2
Dependent Claim
35 words
SOLID IRRADIATIVELY CROSS-LINKED POLYPROPYLENE, WHICH IS CHARACTERIZED BY (1) ITS RESISTANCE TO OXIDATION IN AIR, (2) ITS FREEDOM FROM SUBSTANTIALLY ALL OF THE RADIATIONINDUCED FREE RADICALS, AND (3) ITS FREEDOM FROM SUBSTANTIAL DEGRADATION BY OXYGEN.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-09 | 1964-02-08 | 1964-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-09 | 1968-02-08 | 1968-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-09 | 1972-02-08 | 1972-08-09 | $7700.00 | Window Closed / Lapsed |