US2882176A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cellulose acetate fibers containing nickel carbonate
Assignee: Eastman Kodak Co
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Filing: 1957-01-30
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Granted: 1959-04-14
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Expires: 1977-01-30
Abstract
No abstract record available.
Inventors
- 👤 James M Straley
- 👤 Raymond C Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:23
CPC Classifications
D; D06; D06P; D06P3/00; D06P3/34; D06P3/40; D06P3/405; D01; D01F; D01F1/00; D01F1/02; D01F1/06; D01F2/00; D01F2/24; D01F2/28; D01F2/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
57 words
IN A PROCESS FOR PRODUCING A CELLULOSE ACETATE FIBER CAPABLE OF BEING COLORED WITH A METALLIZABLE DYE, THE IMPROVEMENT WHICH COMPRISES INCORPORTING NICKEL CARBONATE IN THE CELLULOSE ACETATE FROM WHICH THE FIBER IS FORMED IN AN AMOUNT WITHIN THE RANGE OF 0.2 TO 5 PERCENT BY WEIGHT OF THE CELLULOSE ACETATE PRIOR TO FORMATION OF SAID FIBER.
Claim 2
Dependent Claim
57 words
IN A PROCESS FOR PRODUCING A CELLULOSE ACETATE FIBER CAPABLE OF BEING COLORED WITH A METALLIZABLE DYE, THE IMPROVEMENT WHICH COMPRISES INCORPORTING NICKEL CARBONATE IN THE CELLULOSE ACETATE FROM WHICH THE FIBER IS FORMED IN AN AMOUNT WITHIN THE RANGE OF 0.2 TO 5 PERCENT BY WEIGHT OF THE CELLULOSE ACETATE PRIOR TO FORMATION OF SAID FIBER.
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) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |