US2664556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frequency-sensitive apparatus for indicating the magnitude of a condition and limit indication means therefor
Assignee: Liquidometer Corp
•
Filing: 1950-07-22
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Granted: 1953-12-29
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Expires: 1970-07-22
Abstract
No abstract record available.
Inventors
- 👤 Carl G Sontheimer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:16
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/22; G01F23/26; G01F23/263; G01F23/265
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1711101A
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US1626724A
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US1977776A
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US2334704A
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US2519668A
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US2541067A
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US2459261A
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US2417292A
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US2584714A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-28 | 1957-06-29 | 1957-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-28 | 1961-06-29 | 1961-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-28 | 1965-06-29 | 1965-12-29 | $7700.00 | Window Closed / Lapsed |