Patent US6679914B1 successfully refreshed from Google Patents.
US3338805A
Expired / Lapsed
US
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Process for anodizing titanium surfaces
Assignee: Individual
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Filing: 1964-07-28
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Granted: 1967-08-29
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Expires: 1984-07-28
Abstract
No abstract record available.
Inventors
- 👤 Theodore M Pochily
- 👤 Worthington E Parker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 08:18
CPC Classifications
C; C25; C25D; C25D11/00; C25D11/02; C25D11/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
THE PROCESS OF ANODICALLY CONVERTING THE SURFACE OF TITANIUM TO WEAR-RESISTANT, ANTIGALLING COATING COMPRISING THE STEPS OF UTILIZING THE TITANIUM TO BE TREATED AS THE ANODE IN A CAUSTIC AQUEOUS SOLUTION CONTAINING TITANIUM DIOXIDE, SODIUM SILICATE AND ACTIVATED CARBON IN EFFECTIVE AMOUNTS SUFFICIENT TO FROM A WHITE POWDERY RESIDUE ON THE TITANIUM SURFACE DURING THE ANODIC TREATMENT THEREOF, PASSING ELECTRIC CURRENT THROUGH THE ANODE TO PROVIDE A CURRENT DENSITY OF 35-45 AMPERES PER SQUARE FOOT, AND SIMULTANEOUSLY MAINTAINING THE TEMPERATURE OF THE SOLUTION BETWEEN 66* AND 68*F. AND THE PH OF SAID SOLUTION BETWEEN ABOUT 13 AND 14.
Claim 2
Dependent Claim
98 words
THE PROCESS OF ANODICALLY CONVERTING THE SURFACE OF TITANIUM TO WEAR-RESISTANT, ANTIGALLING COATING COMPRISING THE STEPS OF UTILIZING THE TITANIUM TO BE TREATED AS THE ANODE IN A CAUSTIC AQUEOUS SOLUTION CONTAINING TITANIUM DIOXIDE, SODIUM SILICATE AND ACTIVATED CARBON IN EFFECTIVE AMOUNTS SUFFICIENT TO FROM A WHITE POWDERY RESIDUE ON THE TITANIUM SURFACE DURING THE ANODIC TREATMENT THEREOF, PASSING ELECTRIC CURRENT THROUGH THE ANODE TO PROVIDE A CURRENT DENSITY OF 35-45 AMPERES PER SQUARE FOOT, AND SIMULTANEOUSLY MAINTAINING THE TEMPERATURE OF THE SOLUTION BETWEEN 66* AND 68*F. AND THE PH OF SAID SOLUTION BETWEEN ABOUT 13 AND 14.
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) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |