US3404093A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorescent composition for magnetic particle inspection
Assignee: Magnaflux Corp
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Filing: 1965-03-29
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Granted: 1968-10-01
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Expires: 1985-03-29
Abstract
No abstract record available.
Inventors
- 👤 Borrows Paul Kenneth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:09
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06; G; G01; G01N; G01N21/00; G01N21/84; G01N21/88; G01N21/91; G01N27/00; G01N27/72; G01N27/82; G01N27/83; G01N27/84; H; H01; H01F; H01F1/00; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10S428/913
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-01 | 1972-04-01 | 1972-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-01 | 1976-04-01 | 1976-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-01 | 1980-04-01 | 1980-10-01 | $7700.00 | Window Closed / Lapsed |