US3582382A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing nacreous pigment
Assignee: NIHON KOKEN KOGYO CO Ltd
•
Filing: 1968-07-15
•
Granted: 1971-06-01
•
Expires: 1988-07-15
Abstract
Abstract A NACREOUS PIGMENT COMPRISING A TRANSLUCENT LAYER OF TITANIUM DIOXIDE DEPOSITED ON A TRANSLUCENT FLAKE SUBSTRATE, SUCH AS MICA, IS MADE BY CONTINUOUSLY CONTACTING THE SUBSTRATE PARTICLES WITH TITANIUM TETRACHLORIDE VAPOR AT ATMOSPHERIC PRESSURE, FOLLOWED BY CONTINUOUSLY HYDROLYZING THE DEPOSITED TITANIUM TETRACHLORIDE TO FORM TITANIUM DIOXIDE.
Inventors
- 👤 Akira Watanabe
- 👤 Ryota Miyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:48
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0015; C09C1/0021; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/61; C09C2200/00; C09C2200/10; C09C2200/102; C09C2200/1087; C09C2200/30; C09C2200/301; C09C2200/302; C09C2220/00; C09C2220/20
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |