US2578002A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and an apparatus for blending viscose solutions
Assignee: Industrial Rayon Corp
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Filing: 1947-06-03
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Granted: 1951-12-11
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Expires: 1967-06-03
Abstract
No abstract record available.
Inventors
- 👤 Louis S Fryer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:15
CPC Classifications
B; B01; B01F; B01F25/00; B01F25/20; B01F25/21; D; D01; D01D; D01D1/00; D01D1/06; D01D1/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
THE METHOD FOR BLENDING A FRESH VISCOSE SOLUTION WITH AN OLDER RESIDUAL VISCOSE SOLUTION RETAINED IN THE BASE OF AN ENCOLSED CIRCULAR SPACE WHICH COMPRISES CHARGING THE FRESH SOLUTION INTO THE RESIDUAL SOLUTION IN AN ENCLOSED CIRCULAR SPACE IN A CIRCULATORY MANNER AND AT A PRESSURE ADAPTED TO EFFECT A NON-TURBULENT CIRCULATION OF THE SOLUTIONS, AND SUBJECTING THE SOLUTION MIXTURE TO A VACUUM DURING THE CHARGING.
Claim 2
Independent Claim
66 words
THE METHOD FOR BLENDING A FRESH VISCOSE SOLUTION WITH AN OLDER RESIDUAL VISCOSE SOLUTION RETAINED IN THE BASE OF AN ENCOLSED CIRCULAR SPACE WHICH COMPRISES CHARGING THE FRESH SOLUTION INTO THE RESIDUAL SOLUTION IN AN ENCLOSED CIRCULAR SPACE IN A CIRCULATORY MANNER AND AT A PRESSURE ADAPTED TO EFFECT A NON-TURBULENT CIRCULATION OF THE SOLUTIONS, AND SUBJECTING THE SOLUTION MIXTURE TO A VACUUM DURING THE CHARGING.
References Cited (Backward Citations)
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US1992261A
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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) | 1954-12-10 | 1955-06-11 | 1955-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-10 | 1959-06-11 | 1959-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-10 | 1963-06-11 | 1963-12-11 | $7700.00 | Window Closed / Lapsed |