US2664011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid density measuring equipment
Assignee: PRECISION THERMOMETER AND INSTRUMENT CO
•
Filing: 1949-02-18
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Granted: 1953-12-29
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Expires: 1969-02-18
Abstract
No abstract record available.
Inventors
- 👤 Julius C Boonshaft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:03
CPC Classifications
G; G01; G01N; G01N9/00; G01N9/10; G01N9/12; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2499; Y10T137/2504
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB596874A
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US907107A
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US1546702A
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US1559421A
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US1664840A
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US2050629A
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US2342441A
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US2362661A
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US2445255A
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US2445880A
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 |