Patent US3681099A successfully refreshed from Google Patents.
US3681099A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glossy finish linseed water emulsion paints and nonagglomerated pigment composition for said paints
Assignee: United States Department of Agriculture
•
Filing: 1970-08-04
•
Granted: 1972-08-01
•
Expires: 1990-08-04
Abstract
Abstract STABLE AQUEOUS EMULSION LINSEED OIL HOUSEPAINTS HAVING A PVC OF 28 PERCENT AND THAT DRY TO NONFLAT, I.E., SEMIGLOSS OR HIGHLY GLOSSY FINISHES ARE PRODUCED BY FIRST DISPERSING THE METALLIC OXIDE PIGMENT (S) IN HEXANE, BENZENE, CHLOROFORM OF SIMILAR LOW BOILING SOLVENT CONTAINING EMULSIFIERS AND SUFFICIENT LINSEED OIL TO FULLY COAT THE UNAGGREGATED 0.25U PIGMENT PARTICLES, AND THE RESULTING DISPERSION OR SUSPENSION IS THEN GENTLY EMULSIFIED IN WATER. EVAPORATION OF THE LOW BOILING SOLVENT FOLLOWED BY THE INCORPORATION OF ADDITIONAL OIL PROVIDES THE IMPROVED AQUEOUS LINSEED EMULSION PAINT OF THE INVENTION.
Inventors
- 👤 Lambertus H Princen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:01
CPC Classifications
C; C09; C09D; C09D17/00; C09D17/004; C09D17/007; C09D5/00; C09D5/02; C09D5/022
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |