US2545102A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for locating leaks in well pipes
Assignee: Individual
•
Filing: 1947-11-17
•
Granted: 1951-03-13
•
Expires: 1967-11-17
Abstract
No abstract record available.
Inventors
- 👤 Ira A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:46
CPC Classifications
E; E21; E21B; E21B47/00; E21B47/10; E21B47/117; F; F16; F16L; F16L2101/00; F16L2101/30; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7929; Y10T137/7936
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1548012A
Cited
US1652472A
Cited
US1736117A
Cited
US1822925A
Cited
US1966819A
Cited
US2164195A
Cited
US2393404A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |