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US2452156A
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Float position indicator
Assignee: Individual
•
Filing: 1945-09-24
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Granted: 1948-10-26
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Expires: 1965-09-24
Abstract
No abstract record available.
Inventors
- 👤 Donald S Schover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:04
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/30; G01F23/64; G01F23/72; G01F1/00; G01F1/05; G01F1/20; G01F1/22; G01F1/24; G01N; G01N11/00; G01N11/10; G01N11/105; G01N9/00; G01N9/10; G01N9/12; G01N9/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-10-26 | 1952-04-26 | 1952-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-10-26 | 1956-04-26 | 1956-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-10-26 | 1960-04-26 | 1960-10-26 | $7700.00 | Window Closed / Lapsed |