US2553350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting corrosion
Assignee: Standard Oil Development Co
•
Filing: 1947-04-17
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Granted: 1951-05-15
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Expires: 1967-04-17
Abstract
No abstract record available.
Inventors
- 👤 Joseph F Bayhi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:34
CPC Classifications
G; G01; G01V; G01V3/00; G01V3/18; E; E21; E21B; E21B47/00; E21B47/006; E21B47/09; E21B47/092
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE15859E
Cited
US2179240A
Cited
US2207592A
Cited
US2255053A
Cited
US2308159A
Cited
US2371658A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |