US3066356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extrusion of polyethylene using water as lubricant
Assignee: Honeywell International Inc
•
Filing: 1958-04-21
•
Granted: 1962-12-04
•
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 18:20
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.
References Cited (Backward Citations)
US2338787A
Cited
US2482949A
Cited
US2528200A
Cited
US2708772A
Cited
US2814071A
Cited
US2698463A
Cited
US2720680A
Cited
US2889581A
Cited
US2904844A
Cited
US2909810A
Cited
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 |