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Patent US3105046A successfully refreshed from Google Patents.
US3105046A
Expired / Lapsed
US
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Inhibited drilling mud
Assignee: Union Oil Company of California
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Filing: 1961-01-30
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Granted: 1963-09-24
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Expires: 1981-01-30
Abstract
No abstract record available.
Inventors
- 👤 Paul W Fischer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:52
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/04; C09K8/14; C09K8/18; C09K8/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
33 words
A DRILLING FLUID COMPRISING AN AQUEOUS SUSPENSION OF A CLAY AND BETWEEN ABOUT 2 AND ABOUT 10 POUNDS PER BARREL OF A CLAY HYDRATION INHIBITING AGENT, SAID AGENT HAVING THE GENERAL FORMULA: RSO3M
Claim 2
Dependent Claim
33 words
A DRILLING FLUID COMPRISING AN AQUEOUS SUSPENSION OF A CLAY AND BETWEEN ABOUT 2 AND ABOUT 10 POUNDS PER BARREL OF A CLAY HYDRATION INHIBITING AGENT, SAID AGENT HAVING THE GENERAL FORMULA: RSO3M
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) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |