US3459576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acid-reacting ceramic grade anatase tio2 pigment
Assignee: EIDP Inc
•
Filing: 1966-11-30
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Granted: 1969-08-05
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Expires: 1986-11-30
Abstract
No abstract record available.
Inventors
- 👤 Donald J Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:29
CPC Classifications
B; B82; B82Y; B82Y30/00; C; C01; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/08; C01P; C01P2004/00; C01P2004/60; C01P2004/62; C01P2004/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE18854E
Cited
US2933408A
Cited
US3062673A
Cited
US3211528A
Cited
US3220867A
Cited
US3341291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-08-04 | 1973-02-03 | 1973-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-08-04 | 1977-02-03 | 1977-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-08-04 | 1981-02-03 | 1981-08-05 | $7700.00 | Window Closed / Lapsed |