US2943946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of artificial materials
Assignee: Acordis UK Ltd
•
Filing: 1958-09-10
•
Granted: 1960-07-05
•
Expires: 1978-09-10
Abstract
No abstract record available.
Inventors
- 👤 Hawtin Selwyn George
- 👤 Parker David Roland
- 👤 Downing John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:50
CPC Classifications
D; D01; D01D; D01D1/00; D01D1/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
THE METHOD OF OBTAINING, FROM A SOLUTION OF A CELLULOSE ACETATE WHICH SOLUTION CONTAINS GELS, A SOLUTION CONTAINING A LOWER PROPORTION OF GELS, WHICH COMPRISES FORWARDING THE SOLUTION CONTINUOUSLY THROUGH A CONDUIT AND CONTINUOUSLY BLEEDING-OFF FROM SAID CONDUIT A PORTION ONLY OF THE SOLUTION SAID PORTION BEING THAT FLOW-
Claim 2
Independent Claim
49 words
THE METHOD OF OBTAINING, FROM A SOLUTION OF A CELLULOSE ACETATE WHICH SOLUTION CONTAINS GELS, A SOLUTION CONTAINING A LOWER PROPORTION OF GELS, WHICH COMPRISES FORWARDING THE SOLUTION CONTINUOUSLY THROUGH A CONDUIT AND CONTINUOUSLY BLEEDING-OFF FROM SAID CONDUIT A PORTION ONLY OF THE SOLUTION SAID PORTION BEING THAT FLOW-
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) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |