Patent US3271493A successfully refreshed from Google Patents.
US3271493A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melt spinning process
Assignee: Akzona Inc
•
Filing: 1962-12-27
•
Granted: 1966-09-06
•
Expires: 1982-12-27
Abstract
No abstract record available.
Inventors
- 👤 Berge Cornelis Van Den
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:44
CPC Classifications
B; B29; B29B; B29B9/00; B29B9/02; B29B9/06; D; D01; D01D; D01D5/00; D01D5/08; D01D5/088; D01D5/0885; D01G; D01G1/00; D01G1/02; D01G1/025; D01G1/027
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
A PROCESS FOR THE MANUFACTURE OF FUNICULAR STRUCTURE COMPRISING THE STEPS OF EXTRUDING A THERMOPLASTIC MATERIAL THROUGH THE ATMOSPHERE INTO A BATH OF COOLING LIQUID, AND FLOWING AN ANNULAR STREAM OF LIQUID ABOUT THE FRESHLY EXTRUDED FUNICULAR MATERIAL TO ISOLATE THE SAME FROM THE AMBIENT ATMOSPHERE EXTENDING BETWEEN EXTRUSION AND THE COOLING LIQUID.
Claim 2
Dependent Claim
53 words
A PROCESS FOR THE MANUFACTURE OF FUNICULAR STRUCTURE COMPRISING THE STEPS OF EXTRUDING A THERMOPLASTIC MATERIAL THROUGH THE ATMOSPHERE INTO A BATH OF COOLING LIQUID, AND FLOWING AN ANNULAR STREAM OF LIQUID ABOUT THE FRESHLY EXTRUDED FUNICULAR MATERIAL TO ISOLATE THE SAME FROM THE AMBIENT ATMOSPHERE EXTENDING BETWEEN EXTRUSION AND THE COOLING LIQUID.
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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |