Patent US2766244A successfully refreshed from Google Patents.
US2766244A
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Conditioning of vattable quinoidic compounds
Assignee: GAF Chemicals Corp
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Filing: 1953-11-13
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Granted: 1956-10-09
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Expires: 1973-11-13
Abstract
No abstract record available.
Inventors
- 👤 Robert E Brouillard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:49
CPC Classifications
C; C09; C09B; C09B67/00; C09B67/0001; C09B67/0017; C09B67/0071; C09B67/0077
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A PROCESS COMPRISING MILLING, BY KNEADING, WITH FORCES PREDOMINANTLY SHEARING IN NATURE A MIXTURE IN THE FORM OF A DOUGHY, KNEADABLE MASS COMPRISING A WATER INSOLUBLE VATTABLE QUINOIDIC COMPOUND AND FROM 0.5 TO 4 PART BY WEIGHT OF THE COMPOUND OF A STRONG NORMALLY LIQUID NON-OXIDIXZING, NON-REACTIVE ACID HAVING A CONCENTRATION RANGING FROM 68 TO 100 PER CENT BY WEIGHT, AND THEN DILUTING THE MILLED MIXTURE WITH WATER.
Claim 2
Dependent Claim
68 words
A PROCESS COMPRISING MILLING, BY KNEADING, WITH FORCES PREDOMINANTLY SHEARING IN NATURE A MIXTURE IN THE FORM OF A DOUGHY, KNEADABLE MASS COMPRISING A WATER INSOLUBLE VATTABLE QUINOIDIC COMPOUND AND FROM 0.5 TO 4 PART BY WEIGHT OF THE COMPOUND OF A STRONG NORMALLY LIQUID NON-OXIDIXZING, NON-REACTIVE ACID HAVING A CONCENTRATION RANGING FROM 68 TO 100 PER CENT BY WEIGHT, AND THEN DILUTING THE MILLED MIXTURE WITH WATER.
References Cited (Backward Citations)
US1145934A
Cited
US2402167A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |