US2908166A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid level indicating devices
Assignee: Smiths America Corp
•
Filing: 1954-04-01
•
Granted: 1959-10-13
•
Expires: 1974-04-01
Abstract
No abstract record available.
Inventors
- 👤 Johnson Ivan Boris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:40
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263; G01F23/266
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2377275A
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US2581085A
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US2623929A
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US2560709A
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US2621517A
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US2710541A
Cited
US2737808A
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US2629006A
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US2728035A
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US2724273A
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US2738673A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-12 | 1963-04-13 | 1963-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-12 | 1967-04-13 | 1967-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-12 | 1971-04-13 | 1971-10-13 | $7700.00 | Window Closed / Lapsed |