US3250330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating earth formations
Assignee: Shell USA Inc
•
Filing: 1963-10-31
•
Granted: 1966-05-10
•
Expires: 1983-10-31
Abstract
No abstract record available.
Inventors
- 👤 Jr Noyes D Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:00
CPC Classifications
E; E03; E03B; E03B3/00; E03B3/06; E03B3/08; E03B3/15; C; C09; C09K; C09K17/00; C09K17/14; C09K17/18; C09K8/00; C09K8/50; C09K8/56
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A PROCESS FOR TREATING POROUS EARTH FORMATION SURROUNDING A BOREHOLE WHICH COMPRISES FIRST INJECTING INTO THE FORMATION VIA THE BOREHOLE A LIQUID CONTAINING AN ORGANIC COMPOUND HAVING A PLURALITY OF AMINO HYDROGEN ATOMS, THEN TREATING THE SAME PREVIOUSLY TREATED FORMATION VIA THE BOREHOLE WITH A LIQUID CONTAINING A POLYEPOXIDE CONTAINING MORE THAN ONE VIC-EPOXY GROUP SO THAT THERE IS CONTACT BETWEEN THE COMPOUND CONTAINING THE PLURALITY OF AMINO HYDROGEN ATOMS AND THE POLYEPOXIDE.
Claim 2
Dependent Claim
73 words
A PROCESS FOR TREATING POROUS EARTH FORMATION SURROUNDING A BOREHOLE WHICH COMPRISES FIRST INJECTING INTO THE FORMATION VIA THE BOREHOLE A LIQUID CONTAINING AN ORGANIC COMPOUND HAVING A PLURALITY OF AMINO HYDROGEN ATOMS, THEN TREATING THE SAME PREVIOUSLY TREATED FORMATION VIA THE BOREHOLE WITH A LIQUID CONTAINING A POLYEPOXIDE CONTAINING MORE THAN ONE VIC-EPOXY GROUP SO THAT THERE IS CONTACT BETWEEN THE COMPOUND CONTAINING THE PLURALITY OF AMINO HYDROGEN ATOMS AND THE POLYEPOXIDE.
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) | 1969-05-09 | 1969-11-08 | 1970-05-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-09 | 1973-11-08 | 1974-05-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-09 | 1977-11-08 | 1978-05-10 | $7700.00 | Window Closed / Lapsed |