US3373352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic chip gauge utilizing a coil whose turns are short circuited by chips
Assignee: Lisle Corp
•
Filing: 1965-08-02
•
Granted: 1968-03-12
•
Expires: 1985-08-02
Abstract
No abstract record available.
Inventors
- 👤 Wilfred J Huigens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:27
CPC Classifications
G; G01; G01N; G01N15/00; G01N15/06; G01N15/0656; F; F01; F01M; F01M1/00; F01M1/10; F01M2001/1028; F01M2001/1042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3233173A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |