US3492264A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium dioxide stabilizing
Assignee: Total Petrochemicals and Refining USA Inc
•
Filing: 1966-02-08
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Granted: 1970-01-27
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Expires: 1986-02-08
Abstract
No abstract record available.
Inventors
- 👤 Granville J Hahn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:58
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/36; C09C1/3692; C09C3/00; C09C3/04; C09C3/041; C09C3/06; C01; C01P; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2591988A
Cited
US3019123A
Cited
US3041303A
Cited
US3224997A
Cited
US3197425A
Cited
US3331560A
Cited
US3313492A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-01-26 | 1973-07-28 | 1974-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-26 | 1977-07-28 | 1978-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-26 | 1981-07-28 | 1982-01-27 | $7700.00 | Window Closed / Lapsed |