US3209402A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing multicom-ponent filaments and yarns
Assignee: Celanese Corp
•
Filing: 1962-03-07
•
Granted: 1965-10-05
•
Expires: 1982-03-07
Abstract
No abstract record available.
Inventors
- 👤 Riley Jesse Louis
- 👤 Santangelo Joseph Germano
- 👤 Moelter Gregory Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:47
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; D01D5/32; Y; Y10; Y10S; Y10S264/00; Y10S264/26; Y10S425/00; Y10S425/217
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
89 words
APPARATUS FOR PRODUCING A MULTICOMPONENT FILAMENTARY MATERIAL, SAID APPARATUS COMPRISING AT LEAST TWO SEPARATE CONDUITS OF DIFFERENT DIAMETERS, ONE OF SAID CONDUITS DISPOSED CONCENTRICALLY AND COAXIALLY WITHIN A SECOND OF SAID CONDUITS, MEANS FOR INTRODUCING DIFFERENT COMPONENT-FORMING MATERIALS INTO EACH OF SAID CONDUITS IN LAMINAR FLOW, AND A SPINNERETTE CONTAINING A PLURALITY OF ORIFICES DISPOSED ABOUT A CYCLE HAVING A LARGER DIAMETER THAN THAT OF SAID CONDUIT OF SMALLEST DIAMETER, SAID CONDUITS OPERATIVELY COMMUNICATING WITH SAID SPINNERETTE WITH THE CONDUITS OF SMALLEST DIAMETER SPACED SOME DISTANCE FROM SAID SPINNERETTE.
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |