US3299472A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spinnerette pack for melt spinning
Assignee: Monsanto Co
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Filing: 1965-04-02
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Granted: 1967-01-24
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Expires: 1985-04-02
Abstract
No abstract record available.
Inventors
- 👤 Eugle A Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:00
CPC Classifications
D; D01; D01D; D01D4/00; D01D4/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A SPINNERETTE PACK FOR MELT SPINNING FILAMENTS FROM MOLTEN POLYMER COMPRISING IN COMBINATION IN FIXED ADJACENT RELATIONSHIPS: (A) WALLS DEFINING A SUBSTANTIALLY DOME-SHAPED SPINNERETTE PACK CAVITY HAVING FINELY DIVIDED INERT MATERIAL THEREIN, A POLYMER ENTRANCE PORT SUBSTANTIALLY AT THE TOP THEREOF, AND A BASE OF RADIUS R, THE CENTER OF BOTH SAID PORT AND SAID BASE BEING AXIALLY ALIGNED ON A CENTERLINE; (B) SCREENING MEANS ACROSS SAID BASE OF SAID DOMESHAPED CAVITY; AND (C) A SPINNERETTE PLATE IN SEALED RELATIONSHIP WITH SAID WALLS DEFINING SAID BASE OF SAID CAVITY, SAID SPINNERETTE PLATE HAVING A PLURALITY OF CAPILLARIES THERETHROUGH, THE NUMBER OF CAPILLARIES WITHIN AN INTERMEDIATE BASE RADIUS R BEING DETERMINED BY THE EQUATION
Claim 2
Dependent Claim
113 words
A SPINNERETTE PACK FOR MELT SPINNING FILAMENTS FROM MOLTEN POLYMER COMPRISING IN COMBINATION IN FIXED ADJACENT RELATIONSHIPS: (A) WALLS DEFINING A SUBSTANTIALLY DOME-SHAPED SPINNERETTE PACK CAVITY HAVING FINELY DIVIDED INERT MATERIAL THEREIN, A POLYMER ENTRANCE PORT SUBSTANTIALLY AT THE TOP THEREOF, AND A BASE OF RADIUS R, THE CENTER OF BOTH SAID PORT AND SAID BASE BEING AXIALLY ALIGNED ON A CENTERLINE; (B) SCREENING MEANS ACROSS SAID BASE OF SAID DOMESHAPED CAVITY; AND (C) A SPINNERETTE PLATE IN SEALED RELATIONSHIP WITH SAID WALLS DEFINING SAID BASE OF SAID CAVITY, SAID SPINNERETTE PLATE HAVING A PLURALITY OF CAPILLARIES THERETHROUGH, THE NUMBER OF CAPILLARIES WITHIN AN INTERMEDIATE BASE RADIUS R BEING DETERMINED BY THE EQUATION
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) | 1970-01-23 | 1970-07-25 | 1971-01-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-23 | 1974-07-25 | 1975-01-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-23 | 1978-07-25 | 1979-01-24 | $7700.00 | Window Closed / Lapsed |