US3501805A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for forming multicomponent fibers
Assignee: Wyeth Holdings LLC
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Filing: 1963-01-03
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Granted: 1970-03-24
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Expires: 1983-01-03
Abstract
No abstract record available.
Inventors
- 👤 Robert Pohle Douglas Jr
- 👤 Frank N Tonnies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:15
CPC Classifications
D; D01; D01D; D01D5/00; D01D5/28; D01D5/30; Y; Y10; Y10S; Y10S425/00; Y10S425/217
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
183 words
A SPINNERETTE ASSEMBLY COMPROSING (A) A SPINNERETTE HAVING A PLURALITY OF ORIFICES DISPOSED IN A PLURALITY OF PARALLEL ROWS IN THE FACE THEREOF, (B) A SPIN DOPE DISTRIBUTION ASSEMBLY MOUNTED ADJACENT SAID SPINNERETTE COMPRISING A PLURALITY OF PLATES SECURED TOGETHER TO FORM A STACK, SUCH STACK INCLUDING: (1) A PLURALITY OF FIRST PLATES HAVING OPENINGS COMMUNICATING FROM A FIRST SPIN DOPE PASSAGEWAY TO FIRST REGIONS IMMEDIATELY ADJACENT SAID SPINNERETTE, (2) A PLURALITY OF SECOND PLATES HAVING OPENINGS COMMUNICATING FROM A SECOND SPIN DOPE PASSAGEWAY TO SECOND REGIONS IMMEDIATELY ADJACENT SAID SPINNERETTE, AND (3) A PLURALITY OF THIRD PLATES INTERPOSED BETWEEN EACH SUCH FIRST PLATE AND ITS NEIGHBORING SUCH SECOND PLATE TO ISOLATE THE AFORESAID OPENINGS FROM EACH OTHER AND TO PROVIDE COMMUNICATION BETWEEN EACH SUCH FIRST REGION AND EACH SUCH SECOND REGION IMMEDIATELY ADJACENT SAID SPINNERETTE; AND (C) SUPPORT MEANS FOR MOUNTING SAID SPINNERETTE AND SAID SPIN DOPE DISTRIBUTION ASSEMBLY WITH EACH OF SAID THIRD PLATES ALIGNED WITH A CORRESPONDING ROW OF ORIFICES IN SAID SPINNERETTE AND WITH EACH OF ROWS OF ORIFICES LOCATED BETWEEN A PAIR OF ADJACENT FIRST AND SECOND REGIONS.
Claim 2
Dependent Claim
183 words
A SPINNERETTE ASSEMBLY COMPROSING (A) A SPINNERETTE HAVING A PLURALITY OF ORIFICES DISPOSED IN A PLURALITY OF PARALLEL ROWS IN THE FACE THEREOF, (B) A SPIN DOPE DISTRIBUTION ASSEMBLY MOUNTED ADJACENT SAID SPINNERETTE COMPRISING A PLURALITY OF PLATES SECURED TOGETHER TO FORM A STACK, SUCH STACK INCLUDING: (1) A PLURALITY OF FIRST PLATES HAVING OPENINGS COMMUNICATING FROM A FIRST SPIN DOPE PASSAGEWAY TO FIRST REGIONS IMMEDIATELY ADJACENT SAID SPINNERETTE, (2) A PLURALITY OF SECOND PLATES HAVING OPENINGS COMMUNICATING FROM A SECOND SPIN DOPE PASSAGEWAY TO SECOND REGIONS IMMEDIATELY ADJACENT SAID SPINNERETTE, AND (3) A PLURALITY OF THIRD PLATES INTERPOSED BETWEEN EACH SUCH FIRST PLATE AND ITS NEIGHBORING SUCH SECOND PLATE TO ISOLATE THE AFORESAID OPENINGS FROM EACH OTHER AND TO PROVIDE COMMUNICATION BETWEEN EACH SUCH FIRST REGION AND EACH SUCH SECOND REGION IMMEDIATELY ADJACENT SAID SPINNERETTE; AND (C) SUPPORT MEANS FOR MOUNTING SAID SPINNERETTE AND SAID SPIN DOPE DISTRIBUTION ASSEMBLY WITH EACH OF SAID THIRD PLATES ALIGNED WITH A CORRESPONDING ROW OF ORIFICES IN SAID SPINNERETTE AND WITH EACH OF ROWS OF ORIFICES LOCATED BETWEEN A PAIR OF ADJACENT FIRST AND SECOND REGIONS.
References Cited (Backward Citations)
US2031387A
Cited
US3017686A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-23 | 1973-09-22 | 1974-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-23 | 1977-09-22 | 1978-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-23 | 1981-09-22 | 1982-03-24 | $7700.00 | Window Closed / Lapsed |