US2947595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treatment of filamentary materials
Assignee: Celanese Corp
•
Filing: 1955-01-24
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Granted: 1960-08-02
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Expires: 1975-01-24
Abstract
No abstract record available.
Inventors
- 👤 Gregory M Moelter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:32
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/04; D06B3/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN THE PROCESS FOR THE LIQUID TREATMENT OF FILAMENTARY MATERIAL, THE INDIVIDUAL FILAMENTS OF WHICH ALL EXTEND SUBSTANTIALLY IN THE DIRECTION OF THE LENGTH OF SAID FILAMENTARY MATERIAL, THE IMPROVEMENT WHICH COMPRISES INTRODUCING SAID FILAMENTARY MATERIAL INTO A LIQUID TREATING BATH CONTINUOUSLY IN THE FORM OF A SERIES OF CRUNODAL LOOPS OF SAID FILAMENTARY MATERIAL ARRANGED IN A SPIRAL HAVING A DIAMETER GREATER THAN THE DIAMETER OF SAID LOOPS, THE DENSITY OF SAID LIQUID BATH BEING LESS THAN THE DENSITY OF SAID FILAMENTARY MATERIAL WHEREBY SAID SPIRAL OF YARN LOOPS SINKS IN SAID BATH, SUPPORTING SAID SPIRAL IN SAID BATH WITH SUCCESSIVE CONVOLUTIONS OF SAID SPIRAL RESTING ON ONE ANOTHER, AND CONTINUOUSLY WITHDRAWING SAID FILAMENTARY MATERIAL FROM THE BOTTOM OF SAID SPIRAL.
Claim 2
Dependent Claim
49 words
PROCESS FOR THE LIQUID TREATMENT OF FILAMENTARY MATERIAL THE INDIVIDUAL FILAMENTS OF WHICH ALL EXTEND SUBSTANTIALLY IN THE DIRECTION OF THE LENGTH OF SAID FILAMENTARY MATERIAL, WHICH COMPRISES CONTINUOUSLY FEEDING SAID FILAMENTARY MATERIAL, FEEDING A LIQUID FOR TREATING THE SAME INTO CONTACT WITH SAID FILAMENTARY MATERIAL TO FORM A
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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) | 1963-08-02 | 1964-02-01 | 1964-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-02 | 1968-02-01 | 1968-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-02 | 1972-02-01 | 1972-08-02 | $7700.00 | Window Closed / Lapsed |