US3071482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nacreous material from titanium dioxide
Assignee: FRANCIS EARLE LAB Inc
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Filing: 1959-02-27
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Granted: 1963-01-01
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Expires: 1979-02-27
Abstract
No abstract record available.
Inventors
- 👤 Harold A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:11
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0015; C09C1/0018; C01; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/256; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/31504; Y10T428/31844; Y10T428/31848
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
121 words
THE METHOD OF PREPARING NACRE-PRODUCING TITANIUM DIOXIDE PLATELETS WHICH COMPRISES DEPOSITING A SMOOTH SUBSTRATE FILM, WHICH IS SOLUBLE IN A SOLVENT WHICH DOES NOT DISSOLVE SAID TITANIUM DIOXIDE PLATELETS, ON A CLEAN SURFACE, AND OVER SAID SUBSTRATE FILM, A FILM OF A SOLUTION OF A LOWER TITANIUM ESTER HAVING ALKYL GROUPS CONTAINING UPON TO 12 CARBON ATOMS, REMOVING THE SOLVENT FROM SAID SOLUTION, AND HYDROLYZING SAID FILM IN AN ATMOSPHERE HAVING A RELATIVE HUMIDIETY OF BETWEEN ABOUT 20 PERCENT AND 60 PERCENT THEREBY FORMING A FILM HAVING A THICKNESS NOT GREATER THAN 0.75 MICRON, REMOVING THE SUBSTRATE AND HYDROLYZED FILM FROM SAID SURFACE, SEPARATING THE SUBSTRATE FROM THE HYDROLYZED FILM, AND THEN FRACTURING SAID HYDROLYZED FILM, THEREBY FORMING A NACREPRODUCING PLATELETS.
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) | 1965-12-31 | 1966-07-02 | 1967-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-31 | 1970-07-02 | 1971-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-31 | 1974-07-02 | 1975-01-01 | $7700.00 | Window Closed / Lapsed |