Patent US3553015A successfully refreshed from Google Patents.
US3553015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkaline bath removal of scale from titanium workpieces
Assignee: Turco Products Inc
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Filing: 1969-06-30
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Granted: 1971-01-05
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Expires: 1989-06-30
Abstract
Abstract TITANIUM SCALE, GENERALLY COMPRISING OXIDES AND NITRIDES OF TITANIUM, MAY BE REMOVED FROM TITANIUM WORKPIECES BY IMMERSING THE WORKPIECE IN AN ELEVATED TEMPERATURE AQUEOUS BATH BETWEEN ABOUT 180*F. AND 200* F. CONTAINING PER GALLON FROM 3.1 TO 5 POUNDS OF THE MIXTURE CONSISTING ESSENTIALLY OF SODIUM GLUCONATE, 8-30 WEIGHT PERCENT, TRIETHANOLAMINE, 3-24 WEIGHT PERCENT AND SODIUM HYDROXIDE, BALANCE TO 100 WEIGHT PERCENT, AND REMOVING THE WORKPIECE FROM THE BATH FOLLOWING REMOVAL OF SCALE FROM THE WORKPIECE.
Inventors
- 👤 Charles L Dohogne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:49
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/14; C23G1/20; C23G1/205
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) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |