US2907670A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment dispersions
Assignee: GAF Chemicals Corp
•
Filing: 1957-03-22
•
Granted: 1959-10-06
•
Expires: 1977-03-22
Abstract
No abstract record available.
Inventors
- 👤 Katz Leon
- 👤 Fuerst Adolph
- 👤 Robert E Brouillard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:06
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/006; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
23 words
PROCESS FOR THE PREPARATIONOF PIGMENT DISPERSIONS, WHICH COMPRISES MIXING AN AQUEOUS MASS OF PIGMENT WITH A NONIONIC DISPERSING AGENT OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2496582A
Cited
US1970578A
Cited
US1986029A
Cited
US2174761A
Cited
US2213477A
Cited
US2342581A
Cited
US2294381A
Cited
US2623827A
Cited
US2637711A
Cited
US2677700A
Cited
US2727827A
Cited
US2795564A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |