US3007864A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drilling muds and the like incorporating a treated sulfonated lignin containing material, and process for producing same
Assignee: Puget Sound Pulp and Timber Co
•
Filing: 1957-11-06
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Granted: 1961-11-07
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Expires: 1977-11-06
Abstract
No abstract record available.
Inventors
- 👤 Adolphson Carl
- 👤 King Ellis Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 10:55
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/04; C09K8/14; C09K8/18; C09K8/20; C09K8/203
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
108 words
A DRILLING MUD COMPOSITION COMPRISING AN ALKALINE EARTH METAL CLAY DISPERSED IN WATER WITH MORE THAN ABOUT 1 LB./BBL. OF AN ADDITIVE COMPOSED OF AN ALKALINIZED SULFORNATED LIGNIN CONTAINING MATERIAL HAVING BEEN PREPARED BY A PROCESS COMPRISING REACTING SPENT SULFITE LIQUOR WHICH IS COMPOSED ESSENTIALLY OF ALL OF THE LIGNO-SULFONATE SOLIDS OF SAID LIQUOR, WITH SODIUM HYDROXIDE IN AQUEOUS SOLUTION IN SUFFICIENT AMOUNT TO ESTABLISH AND MAINTAIN HYDROGEN ION CONCENTRATION OF THE REACTION WITHIN THE RANGE OF ABOUT PH 7 TO ABOUT PH 13 WITHOUT SUBSTANTIAL PRECIPITATION OF ANY OF THE SULFONATED LIGNIN, AND MAINTAINING THE SOLUTION AT AN ELEVATED TEMPERATURE UNTIL THE REACTION PROCEEDS SUBSTANTIALLY TO COMPLETION.
Claim 2
Dependent Claim
108 words
A DRILLING MUD COMPOSITION COMPRISING AN ALKALINE EARTH METAL CLAY DISPERSED IN WATER WITH MORE THAN ABOUT 1 LB./BBL. OF AN ADDITIVE COMPOSED OF AN ALKALINIZED SULFORNATED LIGNIN CONTAINING MATERIAL HAVING BEEN PREPARED BY A PROCESS COMPRISING REACTING SPENT SULFITE LIQUOR WHICH IS COMPOSED ESSENTIALLY OF ALL OF THE LIGNO-SULFONATE SOLIDS OF SAID LIQUOR, WITH SODIUM HYDROXIDE IN AQUEOUS SOLUTION IN SUFFICIENT AMOUNT TO ESTABLISH AND MAINTAIN HYDROGEN ION CONCENTRATION OF THE REACTION WITHIN THE RANGE OF ABOUT PH 7 TO ABOUT PH 13 WITHOUT SUBSTANTIAL PRECIPITATION OF ANY OF THE SULFONATED LIGNIN, AND MAINTAINING THE SOLUTION AT AN ELEVATED TEMPERATURE UNTIL THE REACTION PROCEEDS SUBSTANTIALLY TO COMPLETION.
References Cited (Backward Citations)
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US2069185A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-06 | 1965-05-08 | 1965-11-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-06 | 1969-05-08 | 1969-11-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-06 | 1973-05-08 | 1973-11-07 | $7700.00 | Window Closed / Lapsed |