US3052837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe finder
Assignee: Shell USA Inc
•
Filing: 1958-12-24
•
Granted: 1962-09-04
•
Expires: 1978-12-24
Abstract
No abstract record available.
Inventors
- 👤 James L Arbogast
- 👤 Charles H Fay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:09
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/08; G01V3/10; G01V3/104; G01V3/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2242312A
Cited
US2238072A
Cited
US3020470A
Cited
US2447316A
Cited
US2788483A
Cited
US2744232A
Cited
US2723374A
Cited
US2872638A
Cited
US2887650A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |