US3076719A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Titanium dioxide pigment of easier dispersibility
Assignee: Wyeth Holdings LLC
•
Filing: 1960-09-15
•
Granted: 1963-02-05
•
Expires: 1980-09-15
Abstract
No abstract record available.
Inventors
- 👤 Walter R Whately
- 👤 Gerard M Sheehan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:13
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/36; C09C1/3692; C09C3/00; C09C3/04; C09C3/041; C09C3/08; C01; C01P; C01P2006/00; C01P2006/22; C01P2006/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
54 words
DRY TITANIUM DIOXIDE PIGMENT PARTICLES OF IMPROVED DISPERSIBILITY IN SURFACE-COATING VEHICLES INCLUDNG WATER, UNIFORMLY CARRYING BETWEEN ABOUT 0.01% AND 3% BY WEIGHT OF A NON-IONIC NORMALLY WATER-SOLUBLE POLYOL CONTAINING BETWEEN ABOUT 4 AND 10 CARBON ATOMS, AT LEAST THREE OF WHICH ARE CONSECUTIVE, SAID POLYOL BEING AT LEAST IN PART ADSORBED ON SAID PIGMENT.
Claim 2
Dependent Claim
54 words
DRY TITANIUM DIOXIDE PIGMENT PARTICLES OF IMPROVED DISPERSIBILITY IN SURFACE-COATING VEHICLES INCLUDNG WATER, UNIFORMLY CARRYING BETWEEN ABOUT 0.01% AND 3% BY WEIGHT OF A NON-IONIC NORMALLY WATER-SOLUBLE POLYOL CONTAINING BETWEEN ABOUT 4 AND 10 CARBON ATOMS, AT LEAST THREE OF WHICH ARE CONSECUTIVE, SAID POLYOL BEING AT LEAST IN PART ADSORBED ON SAID PIGMENT.
References Cited (Backward Citations)
US2875077A
Cited
US2882177A
Cited
US2809122A
Cited
US2927863A
Cited
US2902385A
Cited
US2844486A
Cited
US2907670A
Cited
US3004858A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-04 | 1966-08-06 | 1967-02-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-04 | 1970-08-06 | 1971-02-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-04 | 1974-08-06 | 1975-02-05 | $7700.00 | Window Closed / Lapsed |