Patent US2960482A successfully refreshed from Google Patents.
US2960482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making plastic articles
Assignee: AT&T Inc
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Filing: 1957-05-15
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Granted: 1960-11-15
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Expires: 1977-05-15
Abstract
No abstract record available.
Inventors
- 👤 George E Henning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:46
CPC Classifications
B; B29; B29C; B29C48/00; B29C48/03; B29C48/06; B29C48/05; B29C48/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
THE METHOD OF PRODUCING POLYTHEYLENE ARTICLES WHICH COMPRISES THE STEPS OF BLENDING 100 PARTS BY WEIGHT OF POLYTHEYLENE WITH FROM ABOUT 1/2 PART TO ABOUT 1 PART BY WEIGHT OF DIETHYLENE GLYCOL, AND THEN EXTRUDING THE RESULTANT MIXTURE INTO A DESIRED SHAPE.
Claim 2
Independent Claim
42 words
THE METHOD OF PRODUCING POLYTHEYLENE ARTICLES WHICH COMPRISES THE STEPS OF BLENDING 100 PARTS BY WEIGHT OF POLYTHEYLENE WITH FROM ABOUT 1/2 PART TO ABOUT 1 PART BY WEIGHT OF DIETHYLENE GLYCOL, AND THEN EXTRUDING THE RESULTANT MIXTURE INTO A DESIRED SHAPE.
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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) | 1963-11-15 | 1964-05-16 | 1964-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-15 | 1968-05-16 | 1968-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-15 | 1972-05-16 | 1972-11-15 | $7700.00 | Window Closed / Lapsed |