US3405062A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low liquid loss composition
Assignee: ConocoPhillips Co
•
Filing: 1965-01-25
•
Granted: 1968-10-08
•
Expires: 1985-01-25
Abstract
No abstract record available.
Inventors
- 👤 David A Kuhn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:21
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/60; C09K8/62; Y; Y10; Y10S; Y10S507/00; Y10S507/922
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A LOW FLUID LOSS AQUEOUS WELL FRACTURING COMPOSITION COMPRISING: (A) 40 TO 200 POUNDS PER 1000 GALLONS OF A WATERSOLUBLE GUM, (B) 2 TO 200 POUNDS PER 1000 GALLONS OF PERLITE, AND (C) WATER IN AN AMOUNT SUFFICIENT TO MAKE 1000 GALLONS OF SAID COMPOSITION.
Claim 2
Dependent Claim
45 words
A LOW FLUID LOSS AQUEOUS WELL FRACTURING COMPOSITION COMPRISING: (A) 40 TO 200 POUNDS PER 1000 GALLONS OF A WATERSOLUBLE GUM, (B) 2 TO 200 POUNDS PER 1000 GALLONS OF PERLITE, AND (C) WATER IN AN AMOUNT SUFFICIENT TO MAKE 1000 GALLONS OF SAID COMPOSITION.
References Cited (Backward Citations)
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US2861042A
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US2779735A
Cited
US3079332A
Cited
US3153450A
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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) | 1971-10-08 | 1972-04-08 | 1972-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-08 | 1976-04-08 | 1976-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-08 | 1980-04-08 | 1980-10-08 | $7700.00 | Window Closed / Lapsed |