US3081200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying an oxide coating onto a non-porous refractory substrate
Assignee: IIT Research Institute
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Filing: 1959-04-10
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Granted: 1963-03-12
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Expires: 1979-04-10
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Tompkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C03; C03C; C03C17/00; C03C17/22; C03C17/23; C03C17/25; C04B41/45; C04B41/50; C04B41/5025; C04B41/80; C04B41/81; C04B41/85; C04B41/87; H; H01; H01B; H01B1/00; H01F; H01F41/00; H01F41/14; H01F41/22; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/229; C03C2217/23; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
THE METHOD OF FORMING ADHERENT METAL OXIDE FILMS ON NON-POROUS REFRACTORY SUBSTRATES WHICH COMPRISES THE STEPS OF; PREPAPRING A SOLUTION CONSISTING OF AN ORGANIC SOLVENT AND AT LEAST A PLURALITY OF DIFFERENT METAL ACETYLACETONES WHEREIN THE METALS ARE SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, MANGANESE, IRON, COBALT, NICKEL, COPPER AND ZNC; HEATING THE SUBSTRATE TO A TEMPERATURE GREATER THAN ABOUT 500* C. BUT LESS THAN THE MELTING AND SUBLIMATION TEMPERATURES OF THE SUBSTRATE TO A TEMPERATURE THE METALS, WHICHEVER OCCURS FIRST; ATOMIZING THE SOLUTION; AND DIRECTING THE ATOMIZED SOLUTION AGAINST THE HEATED SUBSTRATE IN AIR SO LONG AS THE SUBSTRATE SURFACE REMAINS HOTTER THAN A TEMPERATURE GREATER THAN ABOUT 500* C. TO YIELD A SPINEL STRUCTURE ON THE SUBSTRATE SURFACE WHICH CONTAINS ONLY OXIDES OF THE METAL ACETYLACETONES, AND REPEATING THE LAST MENTIONED STEP AS MANY TIMES AS NECESSARY TO ATTAIN A FILM CORRESPONDING TO A PREDETERMINED THICKNESS.
Claim 2
Independent Claim
149 words
THE METHOD OF FORMING ADHERENT METAL OXIDE FILMS ON NON-POROUS REFRACTORY SUBSTRATES WHICH COMPRISES THE STEPS OF; PREPAPRING A SOLUTION CONSISTING OF AN ORGANIC SOLVENT AND AT LEAST A PLURALITY OF DIFFERENT METAL ACETYLACETONES WHEREIN THE METALS ARE SELECTED FROM THE GROUP CONSISTING OF CHROMIUM, MANGANESE, IRON, COBALT, NICKEL, COPPER AND ZNC; HEATING THE SUBSTRATE TO A TEMPERATURE GREATER THAN ABOUT 500* C. BUT LESS THAN THE MELTING AND SUBLIMATION TEMPERATURES OF THE SUBSTRATE TO A TEMPERATURE THE METALS, WHICHEVER OCCURS FIRST; ATOMIZING THE SOLUTION; AND DIRECTING THE ATOMIZED SOLUTION AGAINST THE HEATED SUBSTRATE IN AIR SO LONG AS THE SUBSTRATE SURFACE REMAINS HOTTER THAN A TEMPERATURE GREATER THAN ABOUT 500* C. TO YIELD A SPINEL STRUCTURE ON THE SUBSTRATE SURFACE WHICH CONTAINS ONLY OXIDES OF THE METAL ACETYLACETONES, AND REPEATING THE LAST MENTIONED STEP AS MANY TIMES AS NECESSARY TO ATTAIN A FILM CORRESPONDING TO A PREDETERMINED THICKNESS.
References Cited (Backward Citations)
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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) | 1966-03-11 | 1966-09-10 | 1967-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-11 | 1970-09-10 | 1971-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-11 | 1974-09-10 | 1975-03-12 | $7700.00 | Window Closed / Lapsed |