US3068068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rutile seed
Assignee: Akzo Nobel Paints LLC
•
Filing: 1960-11-14
•
Granted: 1962-12-11
•
Expires: 1980-11-14
Abstract
No abstract record available.
Inventors
- 👤 Lester A Kenworthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:57
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
A PROCESS FOR PRODUCING A STABLE COLLOIDAL RUTILEINDUCING SEED WHICH COMPRISES HEAT CURING A MIXTURE OF A TITANIUM HYDRATE AND A MONOBASIC INORGANIC ACID IN THE PRESENCE OF PARTICULATE ION EXCHANGE RESIN AT A TEMPERATURE BELOW THE ATMOSPHERE BOILING POINT OF THE MIXTURE, AND SEPARATING SAID MIXTURE FROM THE ION EXCHANGE RESIN.
Claim 2
Dependent Claim
52 words
A PROCESS FOR PRODUCING A STABLE COLLOIDAL RUTILEINDUCING SEED WHICH COMPRISES HEAT CURING A MIXTURE OF A TITANIUM HYDRATE AND A MONOBASIC INORGANIC ACID IN THE PRESENCE OF PARTICULATE ION EXCHANGE RESIN AT A TEMPERATURE BELOW THE ATMOSPHERE BOILING POINT OF THE MIXTURE, AND SEPARATING SAID MIXTURE FROM THE ION EXCHANGE RESIN.
References Cited (Backward Citations)
US2507729A
Cited
US2971821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-10 | 1966-06-11 | 1966-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-10 | 1970-06-11 | 1970-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-10 | 1974-06-11 | 1974-12-11 | $7700.00 | Window Closed / Lapsed |