Patent US2829091A successfully refreshed from Google Patents.
US2829091A
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Method for electroplating titanium
Assignee: Menasco Manufacturing Co
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Filing: 1956-06-04
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Granted: 1958-04-01
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Expires: 1976-06-04
Abstract
No abstract record available.
Inventors
- 👤 Missel Leo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:47
CPC Classifications
C; C25; C25D; C25D5/00; C25D5/34; C25D5/38
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
A PROCESS FOR TREATING THE SURFACES OF ARTICLES OF TITANIUM AND TITANIUM BASE ALLOYS, INCLUDING THE STEPS OF IMMERSING SAID ARTICLES IN A BATH CONSISTING ESSENTIALLY OF AN AQUEOUS SOLUTION OF 0.5% TO ABOUT 20% BY WEIGHT OF HYDROFLUORIC ACID, AND FROM ABOUT 15% BY WEIGHT TO THE SATURATION POINT OF A CHROMIUM COMPOUND SELECTED FROM THE GROUP CONSISTING OF CHROMIC ACID AND ITS SALTS, MAINTAINING THE TEMPERATURE OF SAID BATH AT ABOUT 180*F. TO THE BOILING POINT FOR 10-20 MINUTES, REMOVING SAID ARTICLES IN A PLATING SOLUTION.
References Cited (Backward Citations)
US1544451A
Cited
US1978791A
Cited
US2127640A
Cited
US2171546A
Cited
US2311623A
Cited
US2478171A
Cited
US2471909A
Cited
US2507956A
Cited
US2764538A
Cited
US2734837A
Cited
US2711364A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-31 | 1961-09-30 | 1962-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-31 | 1965-09-30 | 1966-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-31 | 1969-09-30 | 1970-04-01 | $7700.00 | Window Closed / Lapsed |