US3274078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating the surface of aluminium or aluminium alloy with an organohydrogenpolysiloxane
Assignee: Toshiba Corp
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Filing: 1962-09-11
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Granted: 1966-09-20
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Expires: 1982-09-11
Abstract
No abstract record available.
Inventors
- 👤 Tsuji Yuji
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:53
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/04; C25D11/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
49 words
PROCESS FOR TREATING THE SURFACE OF A METAL CONSISTING ESSENTIALLY OF COMPRISING THE STEPS OF FORMING A POROUS FILM OF ALUMINUM OXIDE BY ELECTROLYTICALLY ANODIZING SAID METAL, APPLYING AN ORGANOHYDROGENPOLYSILOXANE ONTO SAID POROUS FILM OF ALUMINUM OXIDE IMMEDIATELY AFTER SAID ANODIZING STEP AND THEN HEATING SAID THUS-TREATED METAL SURFACE.
Claim 2
Dependent Claim
49 words
PROCESS FOR TREATING THE SURFACE OF A METAL CONSISTING ESSENTIALLY OF COMPRISING THE STEPS OF FORMING A POROUS FILM OF ALUMINUM OXIDE BY ELECTROLYTICALLY ANODIZING SAID METAL, APPLYING AN ORGANOHYDROGENPOLYSILOXANE ONTO SAID POROUS FILM OF ALUMINUM OXIDE IMMEDIATELY AFTER SAID ANODIZING STEP AND THEN HEATING SAID THUS-TREATED METAL SURFACE.
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) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |