US2674587A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment comprising resin coated clay particles
Assignee: Edgar Brothers Co
•
Filing: 1951-11-24
•
Granted: 1954-04-06
•
Expires: 1971-11-24
Abstract
No abstract record available.
Inventors
- 👤 Leek Thomas Gostage
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:17
CPC Classifications
D; D21; D21H; D21H19/00; D21H19/36; D21H19/44; D21H19/62; D21H19/38; D21H19/40; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
A PIGMENT COMPRISING DISCRETE PARTICLES IN SOLID STATE OF CLAY INDIVIDUALLY COATED WITH A CONDENSATION PRODUCT OF FORMALDEHYDE AND AT LEAST ONE MATERIAL OF THE GROUP CONSISTING OF (A) UREA, (B) PHENOL AND (C) MELAMINE, WHICH CONDENSATION PRODUCT IS CAPABLE OF FURTHER ADVANCEMENT, PREPARED BY SPRAY-DRYING AN AQUEOUS MIXTURE OF CLAY AND ONE OF THE GROUP CONSISTING OF (I) A WATER SOLUTION OF SAID CONDENSATION PRODUCT AND (II) A WATER DISPERSION OF SAID CONDENSATION PRODUCT.
Claim 2
Dependent Claim
75 words
A PIGMENT COMPRISING DISCRETE PARTICLES IN SOLID STATE OF CLAY INDIVIDUALLY COATED WITH A CONDENSATION PRODUCT OF FORMALDEHYDE AND AT LEAST ONE MATERIAL OF THE GROUP CONSISTING OF (A) UREA, (B) PHENOL AND (C) MELAMINE, WHICH CONDENSATION PRODUCT IS CAPABLE OF FURTHER ADVANCEMENT, PREPARED BY SPRAY-DRYING AN AQUEOUS MIXTURE OF CLAY AND ONE OF THE GROUP CONSISTING OF (I) A WATER SOLUTION OF SAID CONDENSATION PRODUCT AND (II) A WATER DISPERSION OF SAID CONDENSATION PRODUCT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |