Patent US2876197A successfully refreshed from Google Patents.
US2876197A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Component for well treating fluid
Assignee: ExxonMobil Oil Corp
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Filing: 1955-08-15
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Granted: 1959-03-03
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Expires: 1975-08-15
Abstract
No abstract record available.
Inventors
- 👤 Thomas E Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:56
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/02; C09K8/04; C09K8/26; C09K8/265
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A DRY MIX FOR ADDITION TO OIL AND WATER TO FORM AN EMULSION FLUID FOR USE IN A WELL COMPRISING POPPED PERLITE AND EMULSIFYING AGENT AND CONTAINING AN AGENT CONSISTING OF CALCIUM CHLORIDE IN AN AMOUNT SUFFICIENT TO RENDER SAID MIX RESISTANT TO PACKING UNDER CONDITIONS OF COMPRESSION DURING STORAGE.
Claim 2
Dependent Claim
50 words
A DRY MIX FOR ADDITION TO OIL AND WATER TO FORM AN EMULSION FLUID FOR USE IN A WELL COMPRISING POPPED PERLITE AND EMULSIFYING AGENT AND CONTAINING AN AGENT CONSISTING OF CALCIUM CHLORIDE IN AN AMOUNT SUFFICIENT TO RENDER SAID MIX RESISTANT TO PACKING UNDER CONDITIONS OF COMPRESSION DURING STORAGE.
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) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |