Patent US2730479A successfully refreshed from Google Patents.
US2730479A
Expired / Lapsed
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Fibrous materials and processes of 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 Joseph W Gibson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:51
CPC Classifications
C; C08; C08J; C08J9/00; D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; C08J2377/00; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10S8/00; Y10S8/21; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31728; Y10T428/31732; Y10T442/00; Y10T442/30; Y10T442/3707; Y10T442/3724; Y10T442/3764
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
114 words
THE PROCESS OF FORMING A FIBROUS STRUCTURE WHICH COMPRISES FORMING A BATT OF NYLON FIBRES, TREATING SAID BATT WITH AN AQUEUS SOLUTION COMPRISING 10-60% METAL CHLORIDE AND 1% TO 15% NITRIC ACID, SAID METAL CHLORIDE BEING A MEMBER OF THE GROUP CONSISTING OF ZINC CHLORIDE AND FERRIC CHLORIDE, SAID AQUEOUS SOLUTION BEING AT A TEMPERATURE OF 30* C. TO 85* C., PRESSING SAID TREATED BATT WHILE WET WITH SAID SOLUTION AGAINST AN UNTREATED FABRIC COMPRISING NYLON FIBERS WHEREBY THE TREATED BATT AND UNTREATED FABRIC ARE BONDED TOGETHER, WASHING SAID ASSEMBLY FREE OF METAL CHLORIDE AND NITRIC ACID, AND DRYING, THE SUM OF THE PERCENTAGES OF METAL CHLORIDE AND NITRIC ACID BEING AT LEAST 15%.
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 |