Patent US3066356A successfully refreshed from Google Patents.
US3066356A
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Extrusion of polyethylene using water as lubricant
Assignee: Honeywell International Inc
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Filing: 1958-04-21
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Granted: 1962-12-04
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Expires: 1978-04-21
Abstract
No abstract record available.
Inventors
- 👤 Porter Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:36
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C48/00; B29C48/03; B29C48/09; B29C48/25; B29C48/94; B29C48/95
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
47 words
PROCESS WHEREIN HOT PLASTIC POLYETHYLENE IS EXTRUDED AND IS THEREAFTER CONTACTED WHILE IN MOTION WITH COOLING SURFACES, WHICH PROCESS COMPRISES INCORPORATING WATER IN AMOUNTS IN THE RANGE BETWEEN ABOUT 0.01% AND ABOUT 0.5% BY WEIGHT OF THE POLYETHYLENE IN THE HOT PLASTIC POLYETHYLENE PRIOR TO EXTRUSION THEREOF.
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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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |