US3518054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of a titanium dioxide concentrate
Assignee: Titan GmbH
•
Filing: 1968-09-23
•
Granted: 1970-06-30
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Expires: 1988-09-23
Abstract
No abstract record available.
Inventors
- 👤 Achim Kulling
- 👤 Helmut Steinhausen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 00:34
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1218; C22B34/1222; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S423/00; Y10S423/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2441856A
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US2527257A
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US2804375A
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US2914381A
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US3076692A
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US3202524A
Cited
US3236596A
Cited
US3193376A
Cited
US3407033A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-29 | 1973-12-29 | 1974-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-29 | 1977-12-29 | 1978-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-29 | 1981-12-29 | 1982-06-30 | $7700.00 | Window Closed / Lapsed |