US3249568A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous compositions of alkali metal titanate fibers and polyvinyl alcohol
Assignee: EIDP Inc
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Filing: 1961-09-18
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Granted: 1966-05-03
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Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Paul G Reis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 15:03
CPC Classifications
C; C03; C03C; C03C13/00; C01; C01G; C01G23/00; C01G23/003; C01G23/005; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C08K7/08; C01P; C01P2004/00; C01P2004/10; C01P2004/54; C01P2004/60; C01P2004/61; C01P2006/00; C01P2006/10; C01P2006/12; C01P2006/32; C01P2006/33; C01P2006/34; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
A COMPOSITION CONSISTING ESSENTIALLY OF ALKALI METAL TITANATE FIBERS, POLYVINYL ALCOHOL HAVING A VOSCOSITY, IN A 4% SOLUTION IN WATER AT 20*C., OF 4 TO 65 CENTIPOISES AND A HYDROLYSIS OF 87 TO 100%, AND DEIONIZED WATER, THE WEIGHT RATIO OF POLYVINYL ALCOHOL TO ALKALI METAL TITANATE FIBERS BEING ABOUT 0.25:1 TO ABOUT 1.5:1, THE WEIGHT RATIO OF WATER TO ALKALI METAL TIANATE FIBERS BEING ABOUT 0.1:1 TO ABOUT 25:1.
Claim 2
Dependent Claim
70 words
A COMPOSITION CONSISTING ESSENTIALLY OF ALKALI METAL TITANATE FIBERS, POLYVINYL ALCOHOL HAVING A VOSCOSITY, IN A 4% SOLUTION IN WATER AT 20*C., OF 4 TO 65 CENTIPOISES AND A HYDROLYSIS OF 87 TO 100%, AND DEIONIZED WATER, THE WEIGHT RATIO OF POLYVINYL ALCOHOL TO ALKALI METAL TITANATE FIBERS BEING ABOUT 0.25:1 TO ABOUT 1.5:1, THE WEIGHT RATIO OF WATER TO ALKALI METAL TIANATE FIBERS BEING ABOUT 0.1:1 TO ABOUT 25:1.
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) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |