US2681704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Treating wells with a substrate
Assignee: Individual
•
Filing: 1951-01-02
•
Granted: 1954-06-22
•
Expires: 1971-01-02
Abstract
No abstract record available.
Inventors
- 👤 Paul L Menaul
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:33
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
43 words
A METHOD OF TREATING A FORMATION PENETRATED BY A WELL COMPRISING INTRODUCING INTO SAID WELL A STARCH GEL CONTAINING AN AMYLOCLASTIC ENZYME, APPLYING TO SAID GEL A PRESSURE SUFFICIENT TO FORCE SAID GEL INTO THE PORES OF SAID FORMATION, AND PRODUCING SAID WELL.
Claim 2
Independent Claim
43 words
A METHOD OF TREATING A FORMATION PENETRATED BY A WELL COMPRISING INTRODUCING INTO SAID WELL A STARCH GEL CONTAINING AN AMYLOCLASTIC ENZYME, APPLYING TO SAID GEL A PRESSURE SUFFICIENT TO FORCE SAID GEL INTO THE PORES OF SAID FORMATION, AND PRODUCING SAID WELL.
References Cited (Backward Citations)
US556651A
Cited
US1444250A
Cited
US1998756A
Cited
GB465111A
Cited
US2259419A
Cited
US2343136A
Cited
US2547778A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-21 | 1957-12-21 | 1958-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-21 | 1961-12-21 | 1962-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-21 | 1965-12-21 | 1966-06-22 | $7700.00 | Window Closed / Lapsed |