US2924352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for detecting storage tank leaks
Assignee: Phillips Petroleum Co
•
Filing: 1955-05-12
•
Granted: 1960-02-09
•
Expires: 1975-05-12
Abstract
No abstract record available.
Inventors
- 👤 Robert R Santner
- 👤 Claude H Trotter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:34
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1083148A
Cited
US1630647A
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US2186185A
Cited
US2333315A
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US2520883A
Cited
US2460054A
Cited
US2531159A
Cited
GB709393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |