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US3427869A
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Fluid-detecting system
Assignee: INGENIORSFIRMA G KARLBOM AB
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Filing: 1965-07-13
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Granted: 1969-02-18
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Expires: 1985-07-13
Abstract
No abstract record available.
Inventors
- 👤 Nils Gunnar Rikard Karlbom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:57
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02; G01M3/04; G01M3/042; G01M3/045
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2899517A
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US1465351A
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US2432367A
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US2612036A
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US2693781A
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US2740371A
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US3148544A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-18 | 1972-08-19 | 1973-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-18 | 1976-08-19 | 1977-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-18 | 1980-08-19 | 1981-02-18 | $7700.00 | Window Closed / Lapsed |