Patent US2598066A successfully refreshed from Google Patents.
US2598066A
Expired / Lapsed
US
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Method for the production of pigmented rayon
Assignee: Oscar Kohorn & Co Ltd
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Filing: 1947-11-07
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Granted: 1952-05-27
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Expires: 1967-11-07
Abstract
No abstract record available.
Inventors
- 👤 Reginald A Morse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:52
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/06; D01D1/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
METHOD OF PRODUCING A PIGMENTED EXTRUDED CELLULOSIC PRODUCT COMPRISING UNIFORMLY DISPERSING BY KNEADING A PREDETERMINED AMOUNT OF A POWDERED PIGMENT IN A PREDETERMINED AMOUNT OF VISCOSE SPINNING SOLUTIONTO FORM A MASS OF STIFF DOUGH-LIKE CONSISTENCY, DILUTING SAID MASS WHILE KNEADING WITH ADDITIONAL VISCOSE SPINNING SOLUTION TO PRODUCE A FLOWABLE SLURRY OF SAID PIGMENT IN SAID VISCOSE AND CONTINUOUSLY INJECTING SAID SLURRY INTO A FLOWING VISCOSE SPINNING SOLUTION TO PRODUCE A SPINNING SOLUTION HAVING UNIFORMLY DISPERSED THEREIN SAID PIGMENT AT THE DESIRED CONCENTRATION.
Claim 2
Dependent Claim
82 words
METHOD OF PRODUCING A PIGMENTED EXTRUDED CELLULOSIC PRODUCT COMPRISING UNIFORMLY DISPERSING BY KNEADING A PREDETERMINED AMOUNT OF A POWDERED PIGMENT IN A PREDETERMINED AMOUNT OF VISCOSE SPINNING SOLUTIONTO FORM A MASS OF STIFF DOUGH-LIKE CONSISTENCY, DILUTING SAID MASS WHILE KNEADING WITH ADDITIONAL VISCOSE SPINNING SOLUTION TO PRODUCE A FLOWABLE SLURRY OF SAID PIGMENT IN SAID VISCOSE AND CONTINUOUSLY INJECTING SAID SLURRY INTO A FLOWING VISCOSE SPINNING SOLUTION TO PRODUCE A SPINNING SOLUTION HAVING UNIFORMLY DISPERSED THEREIN SAID PIGMENT AT THE DESIRED CONCENTRATION.
References Cited (Backward Citations)
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US1938312A
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US1955825A
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US2039708A
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US2000003A
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US2324567A
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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) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |