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US3137152A
Expired / Lapsed
US
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Apparatus for the treatment of filamentary material
Assignee: EIDP Inc
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Filing: 1962-12-26
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Granted: 1964-06-16
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Dale James Kenneth
- 👤 Hendrix Walter Hazel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 05:14
CPC Classifications
D; D01; D01D; D01D10/00; D01D10/04; D01D10/0436; D01D10/0481; D01D10/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN APPARATUS FOR TREATING A RUNNING LENGTH OF CONTINUOUS FILAMENTARY TOW AND COMPRISING IN COMBINATION; A BATH OF TOW TREATING LIQUID, UPWARDLY EXTENDING FROM SAID BATH A GENERALLY STRAIGHT TREATING CHAMBER, AND TOW SUPPLY AND FORWARDING MEANS FOR DIRECTING FREE PASSAGE OF SAID RUNNING LENGTH OF TOW FROM A SUBMERGED POSITION IN SAID BATH INTO AND THROUGH SAID CHAMBER, SAID CHAMBER HAVING AT OPPOSITE ENDS THEREOF TOW-INLET AND TOW-DISCHARGE OPENINGS WHICH ARE, RESPECTIVELY, DISPOSED BELOW AND ABOVE THE SURFACE OF SAID BATH, SAID CHAMBER COMPRISING STRUCTURE DEFINING AN ELONGATED PASSAGEWAY AND A VENTURI COMMUNICATING THEREWITH AND TERMINATING IN SAID TOW-INLET OPENING, THE STRUCTURE DEFINING SAID ELONGATED PASSAGEWAY INCLUDING MEANS EXTERNALLY THEREOF FOR HEATING SAID TOW DURING PASSAGE THERETHROUGH.
Claim 2
Independent Claim
118 words
AN APPARATUS FOR TREATING A RUNNING LENGTH OF CONTINUOUS FILAMENTARY TOW AND COMPRISING IN COMBINATION; A BATH OF TOW TREATING LIQUID, UPWARDLY EXTENDING FROM SAID BATH A GENERALLY STRAIGHT TREATING CHAMBER, AND TOW SUPPLY AND FORWARDING MEANS FOR DIRECTING FREE PASSAGE OF SAID RUNNING LENGTH OF TOW FROM A SUBMERGED POSITION IN SAID BATH INTO AND THROUGH SAID CHAMBER, SAID CHAMBER HAVING AT OPPOSITE ENDS THEREOF TOW-INLET AND TOW-DISCHARGE OPENINGS WHICH ARE, RESPECTIVELY, DISPOSED BELOW AND ABOVE THE SURFACE OF SAID BATH, SAID CHAMBER COMPRISING STRUCTURE DEFINING AN ELONGATED PASSAGEWAY AND A VENTURI COMMUNICATING THEREWITH AND TERMINATING IN SAID TOW-INLET OPENING, THE STRUCTURE DEFINING SAID ELONGATED PASSAGEWAY INCLUDING MEANS EXTERNALLY THEREOF FOR HEATING SAID TOW DURING PASSAGE THERETHROUGH.
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) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |