US3364993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of well casing repair
Assignee: Wilson Supply Co
•
Filing: 1967-04-18
•
Granted: 1968-01-23
•
Expires: 1987-04-18
Abstract
No abstract record available.
Inventors
- 👤 Skipper Uvon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:10
CPC Classifications
E; E21; E21B; E21B29/00; E21B29/10; E21B47/00; E21B47/10; E21B47/117
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1880218A
Cited
US2164195A
Cited
US2583316A
Cited
US3047065A
Cited
US3111991A
Cited
US3194310A
Cited
US3297092A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-01-22 | 1971-07-24 | 1972-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-22 | 1975-07-24 | 1976-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-22 | 1979-07-24 | 1980-01-23 | $7700.00 | Window Closed / Lapsed |