Patent US2604469A successfully refreshed from Google Patents.
US2604469A
Expired / Lapsed
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Dustproofed organic color compounds
Assignee: GAF Chemicals Corp
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Filing: 1947-12-30
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Granted: 1952-07-22
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Expires: 1967-12-30
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert E Herrmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:06
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0071
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
41 words
A DUSTLESS COMPOSITION IN THE FORM OF A FREEFLOWING POWDER COMPRISING A SOLID, NORMALLYDUSTING POWDERED ORGANIC COLOR, COMPOUND CONSISTING ESSENTIALLY OF A FAST COLOR SALT ADMIXED WITH AN AMOUNT OF A SILICONE LIQUID STABLE TO POLYMERIZATION HAVING THE FOLLOWING STRUCTURAL FORMULA:
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) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |