US3457038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of a rutile pigment by reacting titanium tetrachloride with oxygen or gases containing oxygen
Assignee: Titan GmbH
•
Filing: 1966-09-29
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Granted: 1969-07-22
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Expires: 1986-09-29
Abstract
No abstract record available.
Inventors
- 👤 Achim Kulling
- 👤 Hans Steinbach
- 👤 Hans Thumm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:33
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/07; C01G23/075; C01P; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2508272A
Cited
US2670275A
Cited
US2750260A
Cited
US2957753A
Cited
US3217787A
Cited
US3224215A
Cited
US3203763A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-21 | 1973-01-20 | 1973-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-21 | 1977-01-20 | 1977-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-21 | 1981-01-20 | 1981-07-22 | $7700.00 | Window Closed / Lapsed |