US3529665A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of testing,treating and isolating formations during drilling
Assignee: Lynes Inc
•
Filing: 1968-12-13
•
Granted: 1970-09-22
•
Expires: 1988-12-13
Abstract
No abstract record available.
Inventors
- 👤 Billy C Malone
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:46
CPC Classifications
E; E21; E21B; E21B49/00; E21B49/08; E21B49/087; E21B33/00; E21B33/10; E21B33/12; E21B33/127
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2404825A
Cited
US2831541A
Cited
US2836246A
Cited
US2978046A
Cited
US3111169A
Cited
US3327781A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-21 | 1974-03-23 | 1974-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-21 | 1978-03-23 | 1978-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-21 | 1982-03-23 | 1982-09-22 | $7700.00 | Window Closed / Lapsed |