US2730478A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fibrous materials and processes for making same
Assignee: EIDP Inc
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Filing: 1954-03-05
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Granted: 1956-01-10
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Expires: 1974-03-05
Abstract
No abstract record available.
Inventors
- 👤 Jr William A Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:53
CPC Classifications
C; C08; C08J; C08J9/00; D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D06; D06M; D06M11/00; D06M11/07; D06M11/11; D06M11/155; D06M11/17; C08J2377/00; Y; Y10; Y10S; Y10S8/00; Y10S8/21; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249924
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
102 words
THE PROCESS OF PREPARING A FIBROUS STRUCTURE WHICH COMPRISES FORMING A BATT OF NYLON FIBERS, TREATING SAID BATT WITH AN AQUEOUS CONTAINING A METAL CHLORIDE, SAID METAL CHLORIDE BEING A MEMBER OF THE GROUP CONSISTING OF ZINC CHLORIDE AND FERRIC CHLORIDE, THE CONTRACTION OF ZINC CHLORIDE IN THE AQUEOUS BATH BEING 30% TO 80% AND THE CONCENTRATION OF FERRIC CHLORIDE BEING 22% TO 42%, THE TEMPERATURE OF THE ZINC CHLORIDE BATH BEING 40* C. TO 80* C. AND THE TEMPERATURE OF THE FERRIC CHLORIDE BATH BEING 60* C. TO 105* C., WASHING THE BATT SUBSTANTIALLY FREE OF UNREACTED METAL CHLORIDE AND DRYING.
Claim 2
Dependent Claim
102 words
THE PROCESS OF PREPARING A FIBROUS STRUCTURE WHICH COMPRISES FORMING A BATT OF NYLON FIBERS, TREATING SAID BATT WITH AN AQUEOUS CONTAINING A METAL CHLORIDE, SAID METAL CHLORIDE BEING A MEMBER OF THE GROUP CONSISTING OF ZINC CHLORIDE AND FERRIC CHLORIDE, THE CONTRACTION OF ZINC CHLORIDE IN THE AQUEOUS BATH BEING 30% TO 80% AND THE CONCENTRATION OF FERRIC CHLORIDE BEING 22% TO 42%, THE TEMPERATURE OF THE ZINC CHLORIDE BATH BEING 40* C. TO 80* C. AND THE TEMPERATURE OF THE FERRIC CHLORIDE BATH BEING 60* C. TO 105* C., WASHING THE BATT SUBSTANTIALLY FREE OF UNREACTED METAL CHLORIDE AND DRYING.
References Cited (Backward Citations)
US2528793A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |