Patent US2779734A successfully refreshed from Google Patents.
US2779734A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for use in wells
Assignee: Stanolind Oil and Gas Co
•
Filing: 1954-11-12
•
Granted: 1957-01-29
•
Expires: 1974-11-12
Abstract
No abstract record available.
Inventors
- 👤 Donnell M Buchanan
- 👤 Paul L Menaul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:26
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; C09K8/64; Y; Y10; Y10S; Y10S507/00; Y10S507/921
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A TEMPORARILY VISCOUS GEL COMPOSITION COMPRISING A MAJOR PROPORTION OF HYDROCARBON LIQUID, A MINOR PROPORTION OF WATER, A STABILIZING AMOUNT OF AN EMULSIFYING AGENT COMPRISING THE REACTION PRODUCT OF A WATER-SOLUBLE AMINE AND A CARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS CONTAINING AT LEAST 12 CARBON ATOMS PER MOLECULE AND NAPHTHENIC ACIDS, AND FROM 0.15 TO 0.45 VOLUME PERCENT OF BENZOTRICHLOR
Claim 2
Dependent Claim
64 words
A TEMPORARILY VISCOUS GEL COMPOSITION COMPRISING A MAJOR PROPORTION OF HYDROCARBON LIQUID, A MINOR PROPORTION OF WATER, A STABILIZING AMOUNT OF AN EMULSIFYING AGENT COMPRISING THE REACTION PRODUCT OF A WATER-SOLUBLE AMINE AND A CARBOXYLIC ACID SELECTED FROM THE GROUP CONSISTING OF FATTY ACIDS CONTAINING AT LEAST 12 CARBON ATOMS PER MOLECULE AND NAPHTHENIC ACIDS, AND FROM 0.15 TO 0.45 VOLUME PERCENT OF BENZOTRICHLOR
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) | 1960-01-29 | 1960-07-30 | 1961-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-29 | 1964-07-30 | 1965-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-29 | 1968-07-30 | 1969-01-29 | $7700.00 | Window Closed / Lapsed |