US3030183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium dioxide fibers and their preparation
Assignee: EIDP Inc
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Filing: 1958-09-18
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Granted: 1962-04-17
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Expires: 1978-09-18
Abstract
No abstract record available.
Inventors
- 👤 Kenneth L Berry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:14
CPC Classifications
D; D21; D21H; D21H5/00; D21H5/12; D21H5/18; C; C04; C04B; C04B30/00; C04B30/02; D04; D04H; D04H1/00; D04H1/40; D04H1/42; D04H1/4209; D04H1/4382; D04H1/43838; D21H13/00; D21H13/36; D21H13/46; Y; Y10; Y10S; Y10S264/00; Y10S264/19
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
54 words
PROCESS FOR PREPARING FELTABLE TITANIUM DIOXIDE FIBERS WHICH COMPRISES BRINGING A TITANIUM TETRAHALIDE AND OXYGEN INTO CONTACT WITH A METAL HALIDE MELT, OF THE CLASS CONSISTING OF ALKALI METAL HALIDE MELTS AND ALKALINE EARTH METAL HALIDE METALS, OBTAINING FELTABLE TITANIUM DIOXIDE FIBERS, AND ISOLATING THE FELTABLE TITANIUM DIOXIDE FIBERS FROM THE METAL HALIDE MELT.
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) | 1965-04-16 | 1965-10-16 | 1966-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-16 | 1969-10-16 | 1970-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-16 | 1973-10-16 | 1974-04-17 | $7700.00 | Window Closed / Lapsed |