US3090769A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dyeable polypropylene fibers containing polyvinyl acetal resins
Assignee: Eastman Kodak Co
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Filing: 1960-02-04
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Granted: 1963-05-21
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Expires: 1980-02-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Coover
- 👤 Frederick B Joyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:01
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/12; C08F; C08F36/00; C08F36/02; C08F36/04; C08L39/00; C08L39/04; C08L39/08; D; D01; D01F; D01F6/00; D01F6/44; D01F6/46; C08L2203/00; C08L2203/12; C08L29/00; C08L29/14; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
35 words
POLYPROPYLENE FIBER EXHIBITING EXCELLENT DYE AFFINITY, LIGHT AND GAS FASTNESS AND RESISTANCE TO OXIATION AND WEATHERING, SAID FIBER CONTAINING ABOUT 1 TO ABOUT 25% BY WEIGHT, BASED ON THE FIBER, OF A POLYVINYL ACETAL RESIN.
Claim 2
Dependent Claim
35 words
POLYPROPYLENE FIBER EXHIBITING EXCELLENT DYE AFFINITY, LIGHT AND GAS FASTNESS AND RESISTANCE TO OXIATION AND WEATHERING, SAID FIBER CONTAINING ABOUT 1 TO ABOUT 25% BY WEIGHT, BASED ON THE FIBER, OF A POLYVINYL ACETAL RESIN.
References Cited (Backward Citations)
US2571683A
Cited
US2882263A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |