US3065093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel pigment compositions
Assignee: Individual
•
Filing: 1959-04-07
•
Granted: 1962-11-20
•
Expires: 1979-04-07
Abstract
No abstract record available.
Inventors
- 👤 Berstein Gregor
- 👤 Willard F Roemelt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:52
CPC Classifications
C; C09; C09D; C09D7/00; C09D7/40; C09D7/60; C09D7/61; B; B82; B82Y; B82Y30/00; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C09C; C09C1/00; C09C1/36; C09C1/3607; C09D17/00; C09D17/004; C09D17/007; C09D17/008; C09D7/66; C09D7/67; C01; C01P; C01P2004/00; C01P2004/60; C01P2004/64; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
69 words
A TITANIUM DIOXIDE PIGMENT FORMULATION HAVING AN IMPROVED COMBINATION OF CHALKING PROPERTIES AND OPACITY CONSISTING ESSENTIALLY OF OPACITY GRADE RUTLIE TITANIUM DIOXIDE AND ANATASE TITANIUM DIOXIDE HAVING AN AVERAGE PARTICLE SIZE OF NO MORE THAN ABOUT 100 MILLIMICRONS, SAID ANATASE TITANIUM DIOXIDE BEING PRESENT IN QUANTITIES SUFFICIENT TO EFFECT A MEASURABLE INCREASE IN THE CHALKING PROPERTIES OF SAID FORMULATION BUT LESS THAN ABOUT 25% BY WEIGHT OF SAID FORMULATION.
Claim 2
Dependent Claim
69 words
A TITANIUM DIOXIDE PIGMENT FORMULATION HAVING AN IMPROVED COMBINATION OF CHALKING PROPERTIES AND OPACITY CONSISTING ESSENTIALLY OF OPACITY GRADE RUTLIE TITANIUM DIOXIDE AND ANATASE TITANIUM DIOXIDE HAVING AN AVERAGE PARTICLE SIZE OF NO MORE THAN ABOUT 100 MILLIMICRONS, SAID ANATASE TITANIUM DIOXIDE BEING PRESENT IN QUANTITIES SUFFICIENT TO EFFECT A MEASURABLE INCREASE IN THE CHALKING PROPERTIES OF SAID FORMULATION BUT LESS THAN ABOUT 25% BY WEIGHT OF SAID FORMULATION.
References Cited (Backward Citations)
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Cited
US1795467A
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US2273431A
Cited
US2340610A
Cited
US2333948A
Cited
US2818344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-11-19 | 1966-05-21 | 1966-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-11-19 | 1970-05-21 | 1970-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-11-19 | 1974-05-21 | 1974-11-20 | $7700.00 | Window Closed / Lapsed |