Patent US2998527A successfully refreshed from Google Patents.
US2998527A
Expired / Lapsed
US
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Gauging device employing radioactivity
Assignee: Nuclear Chicago Corp
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Filing: 1958-06-10
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Granted: 1961-08-29
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Expires: 1978-06-10
Abstract
No abstract record available.
Inventors
- 👤 Shevick Philip
- 👤 Raymond L Meeder
- 👤 Rappa Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:41
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/22; G01N2223/00; G01N2223/05; G01N2223/063; G01N2223/20; G01N2223/202; G01N2223/30; G01N2223/301; G01N2223/60; G01N2223/616
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2666857A
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US2719926A
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US2781453A
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US2772361A
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US2843754A
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US2843755A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-28 | 1965-02-27 | 1965-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-28 | 1969-02-27 | 1969-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-28 | 1973-02-27 | 1973-08-29 | $7700.00 | Window Closed / Lapsed |