US2599745A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition for sealing porous formations in oil and gas wells
Assignee: TWINING
•
Filing: 1949-06-23
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Granted: 1952-06-10
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Expires: 1969-06-23
Abstract
No abstract record available.
Inventors
- 👤 John G Campbell
- 👤 Christi Corpus
- 👤 Homer L Twining
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:02
CPC Classifications
C; C09; C09K; C09K8/00; C09K8/50; C09K8/516; C09K2208/00; C09K2208/08; Y; Y10; Y10S; Y10S106/00; Y10S106/90
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
A COMPOSITION FOR SEALING PERMEABLE FORMATIONS ENCOUNTERED IN THE DRILLING OF A WELL, COMPRISING FIBROUS MATERIAL AND A FILLER IN ADMIXTURE THEREWITH, SAID FIBROUS MATERIAL COMPRISING STRONG, FLEXIBLE FIBERS SELECTED FROM THE GROUP CONSISTING OF JUTE, FLAX, MOHAIR, LECHUGUILLA FIBERS, SYNTHETIC FIBERS, COTTON, COTTON LINTERS, WOOL AND WOOL SHODDY, SAID FIBROUS MATERIAL BEING PRESENT IN PROPORTIONS BY WEIGHT FROM APPROXIMATELY 33% TO 90% AND INCLUDING FIBERS OF DIFFERENT LENGTHS RANGING FROM APPROXIMATELY ONE-FOURTH TO FOUR INCHES, AND SAID FILLER BEING PRESENT IN AMOUNTS UP TO 67% AND COMPRISING SAWDUST PARTICELS RANGING IN SIZE BUT NOT SMALLER THAN 006 INCH IN DIAMETER.
Claim 2
Dependent Claim
101 words
A COMPOSITION FOR SEALING PERMEABLE FORMATIONS ENCOUNTERED IN THE DRILLING OF A WELL, COMPRISING FIBROUS MATERIAL AND A FILLER IN ADMIXTURE THEREWITH, SAID FIBROUS MATERIAL COMPRISING STRONG, FLEXIBLE FIBERS SELECTED FROM THE GROUP CONSISTING OF JUTE, FLAX, MOHAIR, LECHUGUILLA FIBERS, SYNTHETIC FIBERS, COTTON, COTTON LINTERS, WOOL AND WOOL SHODDY, SAID FIBROUS MATERIAL BEING PRESENT IN PROPORTIONS BY WEIGHT FROM APPROXIMATELY 33% TO 90% AND INCLUDING FIBERS OF DIFFERENT LENGTHS RANGING FROM APPROXIMATELY ONE-FOURTH TO FOUR INCHES, AND SAID FILLER BEING PRESENT IN AMOUNTS UP TO 67% AND COMPRISING SAWDUST PARTICELS RANGING IN SIZE BUT NOT SMALLER THAN 006 INCH IN DIAMETER.
References Cited (Backward Citations)
US1807082A
Cited
US2041086A
Cited
US2064936A
Cited
US2119829A
Cited
US2214366A
Cited
US2398347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-06-10 | 1955-12-10 | 1956-06-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-06-10 | 1959-12-10 | 1960-06-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-06-10 | 1963-12-10 | 1964-06-10 | $7700.00 | Window Closed / Lapsed |