US2629261A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measurement of levels of materials in tanks
Assignee: Individual
•
Filing: 1948-07-22
•
Granted: 1953-02-24
•
Expires: 1968-07-22
Abstract
No abstract record available.
Inventors
- 👤 Alfred H Mckinney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:26
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/40; G01F23/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2379328A
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US1188793A
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FR505957A
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US1483131A
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US1557568A
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US1972146A
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US2081950A
Cited
US2216036A
Cited
US2216035A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-24 | 1956-08-25 | 1957-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-24 | 1960-08-25 | 1961-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-24 | 1964-08-25 | 1965-02-24 | $7700.00 | Window Closed / Lapsed |