US2527170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting corrosion
Assignee: Standard Oil Development Co
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Filing: 1947-04-05
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Granted: 1950-10-24
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Expires: 1967-04-05
Abstract
No abstract record available.
Inventors
- 👤 Philip S Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:22
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/72; G01N27/82; G01N27/90; G01N27/9093; E; E21; E21B; E21B47/00; E21B47/006; E21B47/09; E21B47/092; G01V; G01V3/00; G01V3/18; G01V3/26; H; H04; H04N; H04N17/00; H04N17/06; Y; Y10; Y10S; Y10S33/00; Y10S33/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2179240A
Cited
US2259904A
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US2207592A
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US2255053A
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US2359894A
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US2308159A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-10-23 | 1954-04-24 | 1954-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-23 | 1958-04-24 | 1958-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-23 | 1962-04-24 | 1962-10-24 | $7700.00 | Window Closed / Lapsed |