US3365528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of molding spinnerettes
Assignee: Celanese Corp
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Filing: 1965-11-26
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Granted: 1968-01-23
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Expires: 1985-11-26
Abstract
No abstract record available.
Inventors
- 👤 Jesse L Riley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:59
CPC Classifications
B; B29; B29C; B29C70/00; B29C70/04; B29C70/26; B29C33/00; B29C33/0033; B29C33/12; B29C33/123; B29C39/00; B29C39/02; B29C39/10; B29C70/68; B29C70/70; D; D01; D01D; D01D4/00; D01D4/02; D01D4/022
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
IN THE MANUFACTURE OF SPINNERETTE JETS FOR USE IN THE SPINNING OF MANMADE FIBERS, THE PROCESS WHICH COMPRISES: FORMING A CORE ELEMENT HAVING A PORTION PROVIDED WITH SURFACES CONFORMING IN SIZE AND SHAPE TO THE WALLS OF A SPINNING JET OPENING HAVING AN INWARDLY TAPERED INLET PORTION AND A CAPILLARY COMMUNICATING WITH SAID TAPERED INLET PORTION;
Claim 2
Dependent Claim
56 words
IN THE MANUFACTURE OF SPINNERETTE JETS FOR USE IN THE SPINNING OF MANMADE FIBERS, THE PROCESS WHICH COMPRISES: FORMING A CORE ELEMENT HAVING A PORTION PROVIDED WITH SURFACES CONFORMING IN SIZE AND SHAPE TO THE WALLS OF A SPINNING JET OPENING HAVING AN INWARDLY TAPERED INLET PORTION AND A CAPILLARY COMMUNICATING WITH SAID TAPERED INLET PORTION;
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) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |