Patent US3766074A successfully refreshed from Google Patents.
US3766074A
Expired / Lapsed
US
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Magnetically pigmented paint
Assignee: United States Department of the Navy
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Filing: 1972-09-15
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Granted: 1973-10-16
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Expires: 1992-09-15
Abstract
Abstract A MAGNETIC PAINT FORMULATION THAT MAY BE APPLIED TO METAL SURFAC ESPECIALLY SUCH SURFACES WHEN IMMERSED IN A BODY OF FLUID. THE MAGNETIC INGREDIENT OF THE COMPOSITION IS A MAGNETIC IRON OXIDE AND WHEN ATTRACTED TO A MAGNETIZED METAL MATERIAL, THE PAINT IS INTIMATELY DRAWN ONTO THE SURFACE THEREOF. THE PAINT COMPARATIVELY CONTAINS LITTLE SOLVENT FOR UNDERWATER USE.
Inventors
- 👤 C Brouillette
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:38
CPC Classifications
H; H01; H01F; H01F41/00; H01F41/14; H01F41/16; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/34; H01F1/36; H01F1/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-15 | 1977-04-16 | 1977-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-15 | 1981-04-16 | 1981-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-15 | 1985-04-16 | 1985-10-16 | $7700.00 | Window Closed / Lapsed |